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	diff --git a/changelog.d/vs21a.skip b/changelog.d/vs21a.skip
	new file mode 100644
	index 0000000000..e69de29bb2
	diff --git a/src/components/conversation/conversation.js b/src/components/conversation/conversation.js
	index eb8133d733..7869e5df47 100644
	--- a/src/components/conversation/conversation.js
	+++ b/src/components/conversation/conversation.js
	@@ -1,378 +1,388 @@
	import { last } from 'lodash-es'
	import { storeToRefs } from 'pinia'
	import {
	computed,
	inject,
	nextTick,
	provide,
	ref,
	toRefs,
	useTemplateRef,
	watch,
	} from 'vue'

	import QuickFilterSettings from 'src/components/quick_filter_settings/quick_filter_settings.vue'
	import QuickViewSettings from 'src/components/quick_view_settings/quick_view_settings.vue'
	import RichContent from 'src/components/rich_content/rich_content.jsx'
	import ThreadTree from 'src/components/thread_tree/thread_tree.vue'

	import { useInterfaceStore } from 'src/stores/interface.js'
	import { useMergedConfigStore } from 'src/stores/merged_config.js'

	import { useClientRectSize } from 'src/composables/useClientRectSize.js'
	import { useConversation } from 'src/composables/useConversation.js'
	import { useInterfaceSizes } from 'src/composables/useInterfaceSizes.js'
	import { useTreeConversationTopology } from 'src/composables/useTreeConversationTopology.js'
	import { useVirtualScrolling } from 'src/composables/useVirtualScrolling.js'

	import { library } from '@fortawesome/fontawesome-svg-core'
	import {
	faAngleDoubleDown,
	faAngleDoubleLeft,
	faChevronLeft,
	faReply,
	faTimes,
	} from '@fortawesome/free-solid-svg-icons'

	library.add(
	faAngleDoubleDown,
	faAngleDoubleLeft,
	faChevronLeft,
	faReply,
	faTimes,
	)

	export default {
	props: {
	statusId: {
	// Main thing
	type: String,
	required: true,
	},
	- isPage: {
	- // Whether conversation is rendered as a standalone page
	- // as opposed to embedded into a timeline
	+ // Whether conversation is rendered as a standalone page
	+ // as opposed to embedded into a timeline
	+ isPage: Boolean,
	+ // Whether to engage virtual scrolling scroll compensation
	+ scrollCompensation: {
	type: Boolean,
	- default: false,
	+ default: true,
	},
	},
	components: {
	ThreadTree,
	QuickFilterSettings,
	QuickViewSettings,
	RichContent,
	},
	emits: ['heightChange', 'suspendableStateChange', 'expanded', 'collapsed'],
	setup(props, { emit }) {
	const scroller = inject('bodyScrollPosition')
	const { statusId } = toRefs(props)

	// # Main Configuration / global state
	const { mergedConfig } = storeToRefs(useMergedConfigStore())
	const displayStyle = computed(() => mergedConfig.value.conversationDisplay)
	const { layoutType } = storeToRefs(useInterfaceStore())
	const mobileLayout = computed(() => layoutType.value === 'mobile')

	// # Conversation Expansion
	const expanded = ref(false)
	const { isPage } = toRefs(props)
	const isExpanded = computed(() => !!(expanded.value \|\| isPage.value))
	const toggleExpanded = async () => {
	const newVal = !expanded.value
	if (newVal) {
	virtualScrollingEnabled.value = newVal
	await nextTick()
	expanded.value = newVal
	} else {
	expanded.value = newVal
	await nextTick()
	virtualScrollingEnabled.value = newVal
	}
	}
	provide('isExpanded', isExpanded)
	provide('isPage', isPage)
	provide('expandable', true)
	watch(expanded, (val) => (val ? emit('expanded') : emit('collapsed')), {
	flush: 'post',
	})

	// # Main things
	const {
	focusedId,
	conversationId,
	setFocused,
	currentStatus,
	conversation,
	replies,
	getReplies,
	fetchConversation,
	loadError,
	} = useConversation(statusId, isExpanded)
	const conversationLite = computed(() =>
	conversation.value.map(({ id }) => ({ id })),
	)
	provide('focusedId', focusedId)
	provide('conversation', conversation)
	provide('replies', replies)

	// Component created
	if (isPage.value) {
	fetchConversation()
	}

	// # Misc UI things
	const firstStatus = computed(() => conversation.value[0])
	const lastStatus = computed(() => last(conversation.value))
	const getStatusClasses = (statusId, ancestor) => {
	const result = {
	'-first': statusId === firstStatus.value?.id,
	'-last': statusId === lastStatus.value?.id,
	}
	if (ancestor) {
	result['-ancestor'] = true
	result['-fade'] = mergedConfig.value.conversationTreeFadeAncestors
	}
	return result
	}

	// # External virtual scrolling
	const unsuspendableIds = ref(new Set())
	const suspendable = computed(
	() => !isExpanded.value && unsuspendableIds.value.size === 0,
	)
	const rootElement = useTemplateRef('root')
	const rootElementMargin = ref(null)
	const { height } = useClientRectSize(rootElement)
	watch(height, (value) => {
	const rootCss = window.getComputedStyle(rootElement.value)
	const rootMarginString = rootCss.getPropertyValue('margin-top')
	const rootMargin = Number.parseInt(rootMarginString.slice(0, -2), 10)
	rootElementMargin.value = rootMargin
	+ const border = isExpanded.value ? 2 : 1

	emit('heightChange', {
	id: statusId.value,
	- height: value,
	+ height: value + border,
	element: rootElement,
	})
	})

	watch(suspendable, (value) =>
	emit('suspendableStateChange', {
	suspendable: value,
	id: statusId.value,
	}),
	)

	// # Internal virtual scrolling
	const virtualScrollingEnabled = ref(isExpanded.value)

	// Placeholder heights.
	const { fontSize, navbarSize, panelHeaderSize } = useInterfaceSizes()
	const normalStatusHeight = computed(() => fontSize.value * 10)
	const getPlaceholderHeight = (id) => normalStatusHeight
	const offset = computed(() => {
	// The fontsize after navbar is the little gap between navbar and content
	if (isPage.value) {
	return navbarSize.value + fontSize.value + panelHeaderSize.value
	} else if (expanded.value) {
	return (
	navbarSize.value +
	fontSize.value +
	panelHeaderSize.value * 2 +
	rootElementMargin.value
	)
	} else {
	return navbarSize.value + fontSize.value
	}
	})
	+ const { scrollCompensation } = toRefs(props)

	// # Linear style stuff
	const isLinearView = computed(() => displayStyle.value !== 'tree')
	const linearElement = useTemplateRef('linear')
	const linearScrollCompensation = computed(
	- () => virtualScrollingEnabled.value && isLinearView.value,
	+ () =>
	+ virtualScrollingEnabled.value &&
	+ isLinearView.value &&
	+ scrollCompensation.value,
	)
	const {
	heightChart: heightChartLinear,
	changeSuspendState: changeSuspendStateLinear,
	updateVirtualHeight: updateVirtualHeightLinear,
	reset: resetLinearScrollVirtualization,
	scrollTo: linearScrollTo,
	} = useVirtualScrolling({
	name: 'Linear',
	enabled: linearScrollCompensation,
	list: conversationLite,
	body: linearElement,
	offset,
	scrollPositionInstance: scroller,
	scrollCompensation: linearScrollCompensation,
	getPlaceholderHeight,
	})
	const changeSuspendStateLinearLocal = (e) => {
	changeSuspendStateLinear(e)
	const { id, suspendable } = e
	if (suspendable) {
	unsuspendableIds.value.delete(id)
	} else {
	unsuspendableIds.value.add(id)
	}
	}

	// # Tree style stuff
	const isTreeView = computed(() => displayStyle.value === 'tree')
	const {
	topLevel,
	currentAncestors,
	threadDisplay,
	setThreadDisplayRecursively,
	showThreadRecursively,
	resetThreadDisplay,
	totalReplyCount,
	totalReplyDepth,
	} = useTreeConversationTopology(conversation, replies, focusedId)
	provide('threadDisplay', threadDisplay)
	provide('totalReplyCount', totalReplyCount)
	provide('totalReplyDepth', totalReplyDepth)
	watch(
	isExpanded,
	(value) => {
	if (!value) resetThreadDisplay()
	},
	{ flush: 'post' },
	)

	const toggleThreadDisplay = (id) => {
	const current = threadDisplay.value.get(id)
	const next = current === 'hidden' ? 'showing' : 'hidden'
	setThreadDisplayRecursively(id, next)
	}

	const currentAncestorsLite = computed(() =>
	currentAncestors.value.map(({ id }) => ({ id })),
	)
	const ancestorsElement = useTemplateRef('ancestors')
	const treeScrollCompensation = computed(
	- () => virtualScrollingEnabled.value && isTreeView.value,
	+ () =>
	+ virtualScrollingEnabled.value &&
	+ isTreeView.value &&
	+ scrollCompensation.value,
	)
	const {
	heightChart: heightChartAncestors,
	changeSuspendState: changeSuspendStateAncestors,
	updateVirtualHeight: updateVirtualHeightAncestors,
	reset: resetTreeScrollVirtualization,
	} = useVirtualScrolling({
	name: 'Ancestors',
	enabled: treeScrollCompensation,
	list: currentAncestorsLite,
	body: ancestorsElement,
	offset,
	scrollPositionInstance: scroller,
	scrollCompensation: treeScrollCompensation,
	collapseMode: 'height',
	getPlaceholderHeight,
	})
	const changeSuspendStateAncestorsLocal = (e) => {
	changeSuspendStateAncestors(e)
	const { id, suspendable } = e
	if (suspendable) {
	unsuspendableIds.value.delete(id)
	} else {
	unsuspendableIds.value.add(id)
	}
	}
	const changeSuspendStateCurrentLevelLocal = (e) => {
	const { id, suspendable } = e
	if (suspendable) {
	unsuspendableIds.value.delete(id)
	} else {
	unsuspendableIds.value.add(id)
	}
	}

	watch(conversationId, (neu, old) => {
	resetLinearScrollVirtualization()
	resetTreeScrollVirtualization()
	})

	const treeViewIsSimple = computed(
	() => !mergedConfig.value.conversationTreeAdvanced,
	)
	const shouldShowAllConversationButton = computed(
	() => currentAncestors.value.length > 0 && topLevel.value.length > 1,
	)
	const shouldShowAncestors = computed(
	() => isExpanded.value && heightChartAncestors.value.length > 0,
	)

	// # Scrolling
	const scrollTo = (ids) => {
	if (isLinearView.value) {
	return linearScrollTo(ids)
	}
	}
	const focusTopLevel = () => setFocused(currentAncestors.value[0].id)

	watch(focusedId, async (neu, old) => {
	// Ignoring initial update (null -> id) since that is handled by scroll compensation
	if (old && neu) scrollTo(new Set([neu]))
	})

	return {
	// # Misc
	loadError,
	mobileLayout,

	// # Conversation Expansion
	isPage,
	isExpanded,
	toggleExpanded,

	// # Focus
	focusedId,
	setFocused,

	// # Main things
	conversation,
	currentStatus,
	getReplies,

	// # Misc UI things
	getStatusClasses,

	// # Linear style stuff
	isLinearView,

	// ## Linear virtual scrolling
	heightChartLinear,
	changeSuspendStateLinearLocal,
	updateVirtualHeightLinear,

	// # Tree style stuff
	isTreeView,

	// ## Tree virtual scrolling
	heightChartAncestors,
	changeSuspendStateAncestorsLocal,
	updateVirtualHeightAncestors,

	changeSuspendStateCurrentLevelLocal,

	// ## Tree state
	// ### Topology
	topLevel,
	currentAncestors,

	// ### Thread Display
	showThreadRecursively,
	toggleThreadDisplay,

	// ### Derived values and config
	treeViewIsSimple,
	shouldShowAllConversationButton,
	shouldShowAncestors,

	// # Scrolling
	focusTopLevel,
	unsuspendableIds,
	}
	},
	}
	diff --git a/src/components/status/status.js b/src/components/status/status.js
	index 0059bab3df..e94d51f297 100644
	--- a/src/components/status/status.js
	+++ b/src/components/status/status.js
	@@ -1,630 +1,630 @@
	import { mapState } from 'pinia'
	import { defineAsyncComponent } from 'vue'

	import ActivityHeader from 'src/components/activity_header/activity_header.vue'
	import AvatarList from 'src/components/avatar_list/avatar_list.vue'
	import EmojiReactions from 'src/components/emoji_reactions/emoji_reactions.vue'
	import MentionLink from 'src/components/mention_link/mention_link.vue'
	import MentionsLine from 'src/components/mentions_line/mentions_line.vue'
	import PostStatusForm from 'src/components/post_status_form/post_status_form.vue'
	import StatusActionButtons from 'src/components/status_action_buttons/status_action_buttons.vue'
	import StatusContent from 'src/components/status_content/status_content.vue'
	import StatusPopover from 'src/components/status_popover/status_popover.vue'
	import Timeago from 'src/components/timeago/timeago.vue'
	import UserAvatar from 'src/components/user_avatar/user_avatar.vue'
	import UserLink from 'src/components/user_link/user_link.vue'
	import UserListPopover from 'src/components/user_list_popover/user_list_popover.vue'
	import UserPopover from 'src/components/user_popover/user_popover.vue'
	import { muteFilterHits } from '../../services/status_parser/status_parser.js'
	import {
	highlightClass,
	highlightStyle,
	} from '../../services/user_highlighter/user_highlighter.js'

	import { useInstanceStore } from 'src/stores/instance.js'
	import { useInstanceCapabilitiesStore } from 'src/stores/instance_capabilities.js'
	import { useInterfaceStore } from 'src/stores/interface.js'
	import { useMergedConfigStore } from 'src/stores/merged_config.js'
	import { useScrobblesStore } from 'src/stores/scrobbles.js'
	import { useStatusesStore } from 'src/stores/statuses.js'
	import { useSyncConfigStore } from 'src/stores/sync_config.js'
	import { useUserHighlightStore } from 'src/stores/user_highlight.js'
	import { useUsersStore } from 'src/stores/users.js'

	import generateProfileLink from 'src/services/user_profile_link_generator/user_profile_link_generator'

	import { library } from '@fortawesome/fontawesome-svg-core'
	import {
	faAngleDoubleRight,
	faChevronDown,
	faChevronUp,
	faEllipsisH,
	faEnvelope,
	faEye,
	faEyeSlash,
	faGlobe,
	faIgloo,
	faLock,
	faLockOpen,
	faPlay,
	faPlusSquare,
	faReply,
	faRetweet,
	faSmileBeam,
	faStar,
	faThumbtack,
	faTimes,
	} from '@fortawesome/free-solid-svg-icons'

	library.add(
	faEnvelope,
	faGlobe,
	faIgloo,
	faLock,
	faLockOpen,
	faTimes,
	faRetweet,
	faReply,
	faPlusSquare,
	faStar,
	faSmileBeam,
	faEllipsisH,
	faEyeSlash,
	faEye,
	faThumbtack,
	faChevronUp,
	faChevronDown,
	faAngleDoubleRight,
	faPlay,
	)

	const Status = {
	name: 'Status',
	components: {
	PostStatusForm,
	UserAvatar,
	AvatarList,
	StatusPopover,
	UserListPopover,
	EmojiReactions,
	StatusContent,
	ActivityHeader,
	MentionLink,
	MentionsLine,
	UserPopover,
	UserLink,
	Timeago,
	Quote: defineAsyncComponent(() => import('src/components/quote/quote.vue')),
	StatusActionButtons,
	},
	props: {
	statusId: String,
	statusoid: Object,
	replies: Set,

	focused: Boolean,
	compact: Boolean,
	isPreview: Boolean,
	noHeading: Boolean,
	inQuote: Boolean,

	ignoreMute: Boolean,
	widthEfficient: Boolean,

	threadDisplayState: String,
	conversationRank: {
	type: String,
	default: 'linear',
	},
	},
	emits: [
	'requestFocus',
	'toggleExpanded',
	'toggleThreadDisplay',
	'suspendableStateChange',
	'heightChange',
	],
	inject: {
	profileUserId: {
	default: null,
	},
	isPage: {
	default: false,
	},
	isExpanded: {
	default: false,
	},
	expandable: {
	default: false,
	},
	},
	provide: {
	expandable: false, // for quotes
	},
	data() {
	return {
	resizeObserver: new ResizeObserver(this.updateVirtualHeight),
	replying: false,
	unmuted: false,
	mediaPlaying: new Set(),
	error: null,
	headTailLinks: null,
	}
	},
	created() {
	useScrobblesStore().getLatestScrobble(this.status.user.id)
	},
	computed: {
	shouldBeWidthEfficient() {
	return (
	this.widthEfficient \|\|
	this.layoutType === 'mobile' \|\|
	this.mergedConfig.widthEfficientPostLayout
	)
	},
	headerLevel() {
	return [this.isPage ? 0 : 1, this.isExpanded ? 1 : 0].reduce(
	(acc, item) => acc + item,
	1,
	)
	},
	rootClasses() {
	return [
	{
	'-focused': this.focused,
	'-conversation': !this.isPage && this.isExpanded,
	},
	`-conversation-rank-${this.conversationRank}`,
	]
	},
	// Whatever we're given to work with
	status() {
	return this.statusoid ?? useStatusesStore().allStatuses.get(this.statusId)
	},
	inConversation() {
	return this.isExpanded
	},
	inProfile() {
	return this.profileUserId != null
	},
	// Status repeated
	repeatedStatus() {
	if (this.status.retweeted_status === undefined) return undefined
	return useStatusesStore().allStatuses.get(this.status.retweeted_status.id)
	},
	// THE repeat
	repeatStatus() {
	if (this.isRepeat) {
	return this.status
	} else {
	return null
	}
	},
	mainStatus() {
	if (this.isRepeat) {
	return this.repeatedStatus
	} else {
	return this.status
	}
	},
	repeater() {
	return useUsersStore().findUser(this.status.user.id)
	},
	user() {
	return useUsersStore().findUser(this.mainStatus.user.id)
	},
	isTreeView() {
	return this.mergedConfig.conversationDisplay === 'tree'
	},
	showOtherRepliesInside() {
	return this.mergedConfig.conversationOtherRepliesButton === 'inside'
	},
	showOtherRepliesBelow() {
	return this.mergedConfig.conversationOtherRepliesButton === 'below'
	},
	showReasonMutedThread() {
	return (
	(this.mainStatus.thread_muted \|\| this.repeatStatus?.thread_muted) &&
	!this.inConversation
	)
	},
	allowNonSquareEmoji() {
	return this.mergedConfig.nonSquareEmoji
	},
	pauseMfm() {
	return this.mergedConfig.pauseMfm
	},
	scaleMfm() {
	return this.mergedConfig.scaleMfm
	},
	repeaterClass() {
	return highlightClass(this.repeater)
	},
	userClass() {
	return highlightClass(this.user)
	},
	isDeleted() {
	return this.status.deleted
	},
	repeaterStyle() {
	return highlightStyle(
	useUserHighlightStore().get(this.repeater.screen_name),
	)
	},
	favoritedBy() {
	return useStatusesStore().favs.get(this.mainStatus.id) ?? new Set()
	},
	repeatedBy() {
	return useStatusesStore().repeats.get(this.mainStatus.id) ?? new Set()
	},
	userStyle() {
	if (this.noHeading) return
	return highlightStyle(useUserHighlightStore().get(this.user.screen_name))
	},
	replyProfileLink() {
	if (this.isReply) {
	const user = useUsersStore().findUser(
	this.mainStatus.in_reply_to_user_id,
	)

	// User referenced in post might not be yet present in store
	// since their data is not included in status data, just the id
	return user?.statusnet_profile_url
	}
	},
	isRepeat() {
	return !!this.repeatedStatus
	},
	repeaterName() {
	return this.status.user.name \|\| this.status.user.screen_name_ui
	},
	repeaterHtml() {
	return this.status.user.name
	},
	repeaterProfileLink() {
	return this.generateUserProfileLink(
	this.repeater.id,
	this.repeater.screen_name,
	)
	},
	loggedIn() {
	return !!this.currentUser
	},
	muteFilterHits() {
	return muteFilterHits(
	Object.values(
	useSyncConfigStore().prefsStorage.simple.muteFilters \|\| {},
	),
	this.status,
	)
	},
	botStatus() {
	return this.status.user.actor_type === 'Service'
	},
	sensitiveStatus() {
	return this.status.nsfw
	},
	mentionsLine() {
	if (!this.headTailLinks) return []
	const writtenSet = new Set(
	this.headTailLinks.writtenMentions.map((_) => _.url),
	)
	return this.mainStatus.attentions
	.filter((attn) => {
	// no reply user
	return (
	attn.id !== this.mainStatus.in_reply_to_user_id &&
	// no self-replies
	attn.statusnet_profile_url !==
	this.mainStatus.user.statusnet_profile_url &&
	// don't include if mentions is written
	!writtenSet.has(attn.statusnet_profile_url)
	)
	})
	.map((attn) => ({
	url: attn.statusnet_profile_url,
	content: attn.screen_name,
	userId: attn.id,
	}))
	},
	hasMentionsLine() {
	return this.mentionsLine.length > 0
	},
	// TODO move muting logic into some store
	muteReasons() {
	return [
	this.userIsMuted ? 'user' : null,
	this.mainStatus.thread_muted ? 'thread' : null,
	this.muteFilterHits.length > 0 ? 'filtered' : null,
	this.muteBotStatuses && this.botStatus ? 'bot' : null,
	this.muteSensitiveStatuses && this.sensitiveStatus ? 'nsfw' : null,
	].filter(Boolean)
	},
	muteLocalized() {
	if (this.muteReasons.length === 0) return null
	const mainReason = () => {
	switch (this.muteReasons[0]) {
	case 'user':
	return this.$t('status.muted_user')
	case 'thread':
	return this.$t('status.thread_muted')
	case 'filtered':
	return this.$t(
	'status.muted_filters',
	{
	name: this.muteFilterHits[0].name,
	filterMore: this.muteFilterHits.length - 1,
	},
	this.muteFilterHits.length,
	)
	case 'bot':
	return this.$t('status.bot_muted')
	case 'nsfw':
	return this.$t('status.sensitive_muted')
	}
	}
	if (this.muteReasons.length > 1) {
	return this.$t(
	'status.multi_reason_mute',
	{
	main: mainReason(),
	numReasonsMore: this.muteReasons.length - 1,
	},
	this.muteReasons.length - 1,
	)
	} else {
	return mainReason()
	}
	},
	muted() {
	if (this.ignoreMute) return false
	if (this.status.user.id === this.currentUser?.id) return false
	return !this.unmuted && !this.shouldNotMute && this.muteReasons.length > 0
	},
	userIsMuted() {
	if (!this.currentUser) return false
	if (this.user === this.currentUser) return false
	if (this.repeater === this.currentUser) return false
	const relationship = useUsersStore().relationship(this.user.id)
	const relationshipRepeat = useUsersStore().relationship(this.repeater?.id)
	return (
	(this.status.muted && !this.status.thread_muted) \|\|
	// Reprööt of a muted post according to BE
	(this.repeatedStatus?.muted && !this.repeatedStatus.thread_muted) \|\|
	// Muted user
	relationship.muting \|\|
	// Muted user of a reprööt
	relationshipRepeat?.muting
	)
	},
	shouldNotMute() {
	if (this.ignoreMute) return true
	if (this.focused) return true
	const { reblog } = this.mainStatus
	return (
	((this.inProfile &&
	// Don't mute user's posts on user timeline (except reblogs)
	((!reblog && this.mainStatus.user.id === this.profileUserId) \|\|
	// Same as above but also allow self-reblogs
	reblog?.user.id === this.profileUserId)) \|\|
	// Don't mute statuses in muted conversation when said conversation is opened
	(this.inConversation && this.mainStatus.thread_muted)) &&
	// No excuses if post has muted words
	!this.muteFilterHits.length > 0
	)
	},
	hideMutedUsers() {
	return this.mergedConfig.hideMutedPosts
	},
	hideMutedThreads() {
	return this.mergedConfig.hideMutedThreads
	},
	hideFilteredStatuses() {
	return this.mergedConfig.hideFilteredStatuses
	},
	hideWordFilteredPosts() {
	return this.mergedConfig.hideWordFilteredPosts
	},
	hideStatus() {
	return (
	!this.shouldNotMute &&
	((this.muted && this.hideFilteredStatuses) \|\|
	(this.userIsMuted && this.hideMutedUsers) \|\|
	(this.status.thread_muted && this.hideMutedThreads) \|\|
	(this.muteFilterHits.length > 0 && this.hideWordFilteredPosts) \|\|
	this.muteFilterHits.some((x) => x.hide))
	)
	},
	isReply() {
	return !!(
	this.mainStatus.in_reply_to_status_id &&
	this.mainStatus.in_reply_to_user_id
	)
	},
	replyToName() {
	if (this.mainStatus.in_reply_to_screen_name) {
	return this.mainStatus.in_reply_to_screen_name
	} else {
	const user = useUsersStore().findUser(
	this.mainStatus.in_reply_to_user_id,
	)
	return user?.screen_name_ui
	}
	},
	combinedFavsAndRepeatsUsers() {
	return new Set([...this.favoritedBy, ...this.repeatedBy])
	},
	tags() {
	return [...this.status.tags]
	.filter((tagObj) => Object.hasOwn(tagObj, 'name'))
	.map((tagObj) => tagObj.name)
	.join(' ')
	},
	hidePostStats() {
	return this.mergedConfig.hidePostStats
	},
	shouldDisplayFavsAndRepeats() {
	return (
	!this.hidePostStats &&
	this.focused &&
	(this.combinedFavsAndRepeatsUsers.size > 0 \|\|
	this.mainStatus.quotes_count)
	)
	},
	muteBotStatuses() {
	return this.mergedConfig.muteBotStatuses
	},
	muteSensitiveStatuses() {
	return this.mergedConfig.muteSensitiveStatuses
	},
	hideBotIndication() {
	return this.mergedConfig.hideBotIndication
	},
	currentUser() {
	return useUsersStore().currentUser
	},
	mergedConfig() {
	return useMergedConfigStore().mergedConfig
	},
	isSuspendable() {
	return !this.replying && this.mediaPlaying.size === 0
	},
	visibilityLocalized() {
	return this.$i18n.t('general.scope_in_timeline.' + this.status.visibility)
	},
	isEdited() {
	return this.mainStatus.edited_at !== null
	},
	editingAvailable() {
	return useInstanceCapabilitiesStore().editingAvailable
	},
	quoteId() {
	return this.mainStatus.quote_id
	},
	quoteUrl() {
	return this.mainStatus.quote_url
	},
	quoteVisible() {
	return this.mainStatus.quote_visible
	},
	quoteExpanded() {
	return !this.inQuote
	},
	scrobblePresent() {
	if (this.mergedConfig.hideScrobbles) return false
	if (!this.status.user?.latestScrobble) return false
	const value = this.mergedConfig.hideScrobblesAfter.match(/\d+/gs)[0]
	const unit = this.mergedConfig.hideScrobblesAfter.match(/\D+/gs)[0]
	let multiplier = 60 * 1000 // minutes is smallest unit
	switch (unit) {
	case 'm':
	break
	case 'h':
	multiplier *= 60 // hour
	break
	case 'd':
	multiplier *= 60 // hour
	multiplier *= 24 // day
	break
	}
	const maxAge = Number(value) * multiplier
	const createdAt = Date.parse(this.status.user.latestScrobble.created_at)
	const age = Date.now() - createdAt
	if (age > maxAge) return false
	return this.status.user.latestScrobble.artist
	},
	scrobble() {
	return this.status.user?.latestScrobble
	},
	...mapState(useInterfaceStore, ['layoutType']),
	},
	methods: {
	showError(error) {
	this.error = error
	},
	clearError() {
	this.error = undefined
	},
	toggleReplyForm() {
	if (this.replying) {
	// This emits 'close-accepted' if successful
	// which in turn callse closeReply()
	this.$refs.postStatusForm.requestClose()
	} else {
	this.replying = true
	}
	},
	closeReplyForm() {
	this.replying = false
	},
	toggleMute() {
	this.unmuted = !this.unmuted
	},
	generateUserProfileLink(id, name) {
	return generateProfileLink(
	id,
	name,
	useInstanceStore().restrictedNicknames,
	)
	},
	addMediaPlaying(id) {
	this.mediaPlaying.add(id)
	},
	removeMediaPlaying(id) {
	this.mediaPlaying.delete(id)
	},
	setHeadTailLinks(headTailLinks) {
	this.headTailLinks = headTailLinks
	},
	updateVirtualHeight(e) {
	const [entry] = e
	this.$emit('heightChange', {
	id: this.status.id,
	height: entry.contentRect.height + 1,
	- element: this.$el,
	+ element: this.$refs.root,
	})
	},
	},
	mounted() {
	if (this.$refs.root) {
	this.resizeObserver.observe(this.$refs.root)
	this.updateVirtualHeight([
	{
	contentRect: this.$refs.root.getBoundingClientRect(),
	},
	])
	}
	},
	unmounted() {
	this.resizeObserver.disconnect()
	},
	watch: {
	hideStatus: {
	handler() {
	if (this.$refs.root) {
	this.resizeObserver.observe(this.$refs.root)
	} else {
	this.resizeObserver.disconnect()
	}
	},
	flush: 'post',
	},
	'mainStatus.repeat_num': function (num) {
	// refetch repeats when repeat_num is changed in any way
	if (this.focused && this.repeatedBy.size !== num) {
	useStatusesStore().fetchRepeats(this.mainStatus.id)
	}
	},
	'mainStatus.fave_num': function (num) {
	// refetch favs when fave_num is changed in any way
	if (this.focused && this.favoritedBy.size !== num) {
	useStatusesStore().fetchFavs(this.mainStatus.id)
	}
	},
	isSuspendable: function (suspendable) {
	this.$emit('suspendableStateChange', { id: this.status.id, suspendable })
	},
	},
	}

	export default Status
	diff --git a/src/components/timeline/timeline.js b/src/components/timeline/timeline.js
	index 18387b22c4..4b9d42d88c 100644
	--- a/src/components/timeline/timeline.js
	+++ b/src/components/timeline/timeline.js
	@@ -1,279 +1,279 @@
	import { debounce, throttle } from 'lodash-es'
	import { storeToRefs } from 'pinia'
	import {
	computed,
	inject,
	nextTick,
	onMounted,
	onUnmounted,
	ref,
	toRefs,
	useId,
	useTemplateRef,
	watch,
	} from 'vue'
	import { useI18n } from 'vue-i18n'

	import Conversation from 'src/components/conversation/conversation.vue'
	import QuickFilterSettings from 'src/components/quick_filter_settings/quick_filter_settings.vue'
	import QuickViewSettings from 'src/components/quick_view_settings/quick_view_settings.vue'
	import ScrollTopButton from 'src/components/scroll_top_button/scroll_top_button.vue'
	import TimelineMenu from 'src/components/timeline_menu/timeline_menu.vue'

	import { useInterfaceStore } from 'src/stores/interface.js'
	import { useMergedConfigStore } from 'src/stores/merged_config.js'
	import { useStatusesStore } from 'src/stores/statuses.js'
	import { useTimelinesStore } from 'src/stores/timelines.js'

	import { useDocumentFocus } from 'src/composables/useDocumentFocus.js'
	import { useInterfaceSizes } from 'src/composables/useInterfaceSizes.js'
	import { useVirtualScrolling } from 'src/composables/useVirtualScrolling.js'

	import { library } from '@fortawesome/fontawesome-svg-core'
	import {
	faArrowUp,
	faCheck,
	faCircleNotch,
	faCirclePlus,
	faCog,
	faMinus,
	} from '@fortawesome/free-solid-svg-icons'

	library.add(faCircleNotch, faCog, faMinus, faArrowUp, faCirclePlus, faCheck)

	const Timeline = {
	props: {
	timelineRef: Object,
	footerSlipgate: Object, // reference to an element where we should put our footer
	embedded: Boolean,
	skipPinned: Boolean,
	hideEmpty: Boolean,
	},
	components: {
	ScrollTopButton,
	Conversation,
	TimelineMenu,
	QuickFilterSettings,
	QuickViewSettings,
	},
	setup(props, ctx) {
	const { t } = useI18n()

	const { focused } = useDocumentFocus()
	const unfocused = computed(() => !focused.value)

	// Timeline
	const { timelineRef } = toRefs(props)
	const timeline = computed(() => useTimelinesStore()[timelineRef.value.name])
	const { skipPinned } = toRefs(props)
	const filteredVisibleStatuses = computed(() => {
	return timeline.value.order
	.filter((id) => timeline.value.visibleStatusIds.has(id))
	.map((id) => useStatusesStore().allStatuses.get(id))
	.filter(({ pinned }) => (skipPinned.value ? !pinned : true))
	})

	// Scroll position
	const scroller = inject('bodyScrollPosition')
	const { hasReachedTop, shouldLoadBottom, top: scrollY } = scroller
	// Virtual scrolling
	const { fontSize, navbarSize } = useInterfaceSizes()

	// Placeholder heights.
	const mutedStatusHeight = computed(() => fontSize.value * 1.5)
	const normalStatusHeight = computed(() => fontSize.value * 10)
	const getPlaceholderHeight = (id) =>
	filteredVisibleStatuses.value.find((item) => item.id === id)?.muted
	? mutedStatusHeight
	: normalStatusHeight

	const body = useTemplateRef('timeline')
	const offset = computed(() => {
	if (embedded.value) {
	// The fontsize after navbar is the little gap between navbar and content
	return navbarSize.value + fontSize.value
	} else {
	return 0
	}
	})
	const { heightChart, changeSuspendState, updateVirtualHeight } =
	useVirtualScrolling({
	name: 'Timeline',
	enabled: ref(true),
	list: filteredVisibleStatuses,
	body,
	offset,
	scrollPositionInstance: scroller,
	- scrollCompensation: false,
	+ scrollCompensation: true,
	getPlaceholderHeight,
	})

	// Counter
	const count = computed(() => timeline.value.order.length)
	const newStatusCount = computed(() => timeline.value.newStatusCount)
	const showLoadButton = computed(
	() => timeline.value.newStatusCount > 0 \|\| timeline.value.reloadNeeded,
	)

	// Showing new
	const paused = ref(false)
	const { mergedConfig } = storeToRefs(useMergedConfigStore())
	const unfocusedPause = computed(
	() => unfocused.value && mergedConfig.value.pauseOnUnfocused,
	)
	const showNewAutomatically = computed(
	() => useMergedConfigStore().mergedConfig.streaming,
	)

	watch(newStatusCount, (count) => {
	if (!showNewAutomatically.value) return
	if (count <= 0) return

	// only 'stream' them when you're scrolled to the top
	if (hasReachedTop.value && !paused.value && !unfocusedPause.value) {
	showNewStatuses(true)
	} else {
	paused.value = true
	}
	})

	const showNewStatuses = async (fast = false) => {
	if (timeline.value.reloadNeeded) {
	useTimelinesStore().clearTimeline(timelineRef.value.name)
	fetchOlderStatuses()
	} else {
	blockClicksTemporarily()
	useTimelinesStore().showNewStatuses(timelineRef.value.name)
	}
	paused.value = false
	await nextTick()
	scroller.scrollToPriority({
	top: 0,
	behavior: fast ? 'instant' : 'smooth',
	})
	}
	const fetchOlderStatuses = throttle(() => {
	timeline.value.fetcher.fetchOlder()
	}, 1000)

	// Timeline change
	const timelineChange = (newTimeline, oldTimeline) => {
	const sameName = newTimeline?.name === oldTimeline?.name
	const sameArgument = newTimeline?.argument === oldTimeline?.argument
	if (sameName && sameArgument) return

	if (oldTimeline) {
	useTimelinesStore().deactivate(oldTimeline.name)
	}
	if (newTimeline) {
	useTimelinesStore().activate(newTimeline.name, newTimeline.argument)
	}
	}
	watch(timelineRef, timelineChange, { immediate: true })
	onUnmounted(() => {
	timelineChange(null, timelineRef.value)
	})

	// Misclick prevention
	const blockingClicks = ref(false)
	const stopBlockingClicks = debounce(() => {
	blockingClicks.value = false
	}, 1000)
	const blockClicksTemporarily = () => {
	if (!blockingClicks.value) {
	blockingClicks.value = true
	}
	stopBlockingClicks()
	}

	// Shortcuts
	const handleShortKey = (e) => {
	// Ignore when input fields are focused
	if (['textarea', 'input'].includes(e.target.tagName.toLowerCase())) return
	if (e.key === '.') showNewStatuses()
	}
	onMounted(() => {
	window.addEventListener('keydown', handleShortKey)
	})
	onUnmounted(() => {
	window.removeEventListener('keydown', handleShortKey)
	})

	- const infiniteLoadWatcher = debounce((value) => {
	+ const infiniteLoadWatcher = debounce(([value]) => {
	if (!value) return
	fetchOlderStatuses()
	}, 100)
	// Scroll
	watch([shouldLoadBottom, scrollY], infiniteLoadWatcher)
	onUnmounted(() => {
	infiniteLoadWatcher.cancel()
	})

	// Misc UI things
	const classes = computed(() => {
	let rootClasses = !embedded.value
	? ['panel', 'panel-default']
	: ['-embedded']
	if (blockingClicks.value)
	rootClasses = rootClasses.concat(['-blocked', '_misclick-prevention'])
	return {
	root: rootClasses,
	header: ['timeline-heading'].concat(
	!embedded.value ? ['panel-heading', '-sticky'] : ['panel-body'],
	),
	body: ['timeline-body'].concat(
	!embedded.value ? ['panel-body'] : ['panel-body'],
	),
	footer: ['timeline-footer'].concat(
	!embedded.value ? ['panel-footer'] : ['panel-body'],
	),
	}
	})
	const loadButtonString = computed(() => {
	if (timeline.value.reloadNeeded) {
	return t('timeline.reload')
	} else {
	return `${t('timeline.show_new')} (${newStatusCount.value})`
	}
	})
	const mobileLoadButtonString = computed(() => {
	if (timeline.value.reloadNeeded) {
	return '+'
	} else {
	return newStatusCount.value > 99 ? '∞' : newStatusCount.value
	}
	})

	const { layoutType } = storeToRefs(useInterfaceStore())
	const mobileLayout = computed(() => layoutType.value === 'mobile')
	const { footerSlipgate, embedded, hideEmpty } = toRefs(props)
	const uniqueId = useId()

	return {
	timelineRef,
	timeline,
	filteredVisibleStatuses,

	heightChart,
	updateVirtualHeight,
	changeSuspendState,

	count,
	showLoadButton,

	showNewStatuses,
	fetchOlderStatuses,

	classes,
	loadButtonString,
	mobileLoadButtonString,
	mobileLayout,
	footerSlipgate,
	embedded,
	hideEmpty,
	uniqueId,
	}
	},
	}

	export default Timeline
	diff --git a/src/components/timeline/timeline.vue b/src/components/timeline/timeline.vue
	index f8774fbc7f..de844e5a01 100644
	--- a/src/components/timeline/timeline.vue
	+++ b/src/components/timeline/timeline.vue
	@@ -1,172 +1,174 @@
	<template>
	<!-- there is a brief moment during logout when old timeline gets forcibly deactivated -->
	<div
	v-if="timeline.fetcher"
	:class="['Timeline', classes.root]"
	>
	<div
	v-if="!embedded"
	:class="classes.header"
	>
	<TimelineMenu
	v-if="!embedded"
	:timeline-name="timelineRef.name"
	:id="'timeline-header-' + uniqueId"
	/>
	<div
	v-if="timeline.fetcher.loadingNewer && !showLoadButton"
	class="loadingIndicator"
	>
	<FAIcon
	fixed-width
	icon="circle-notch"
	spin
	/>
	</div>
	<ScrollTopButton />
	<template v-if="mobileLayout">
	<div
	v-if="showLoadButton"
	class="rightside-button"
	>
	<button
	class="button-unstyled loadmore-button"
	:title="loadButtonString"
	@click.prevent="showNewStatuses(false)"
	>
	<FAIcon
	fixed-width
	icon="circle-plus"
	/>
	<div class="badge -counter">
	{{ mobileLoadButtonString }}
	</div>
	</button>
	</div>
	<div
	v-else-if="!timeline.fetcher.loadingNewer"
	class="loadmore-text faint veryfaint rightside-icon"
	:title="$t('timeline.up_to_date')"
	:aria-disabled="true"
	@click.prevent
	>
	<FAIcon
	fixed-width
	icon="check"
	/>
	</div>
	</template>
	<template v-else>
	<button
	v-if="showLoadButton"
	class="button-default loadmore-button"
	@click.prevent="showNewStatuses(false)"
	>
	{{ loadButtonString }}
	</button>
	<div
	v-else
	class="loadmore-text faint"
	@click.prevent
	>
	{{ $t('timeline.up_to_date') }}
	</div>
	</template>
	<QuickFilterSettings
	v-if="!mobileLayout"
	class="rightside-button"
	/>
	<QuickViewSettings
	class="rightside-button"
	/>
	</div>
	<div :class="classes.body">
	<div
	class="timeline"
	ref="timeline"
	role="feed"
	:aria-labelledby="embedded ? undefined : ('timeline-header-'+ uniqueId)"
	>
	<template
	v-for="element in heightChart"
	:key="element.id"
	>
	<Conversation
	v-if="element.type === 'item'"
	class="timeline-conversation"
	:status-id="element.id"
	+ :scroll-compensation="element.visible"

	:data-vs-height="element.height"
	:data-vs-top="element.top"
	:data-vs-id="element.id"
	+ :data-vs-visible="element.visible"

	@suspendable-state-change="changeSuspendState"
	@height-change="updateVirtualHeight"
	/>
	<div
	v-if="element.type === 'spacer'"
	class="virtual-spacer"
	aria-hidden="true"
	:style="{ height: element.height + 'px' }"
	/>
	</template>
	</div>
	<template v-if="!hideEmpty && count === 0">
	<div
	v-if="timeline.fetcher.loadingNewer \|\| timeline.fetcher.loadingOlder"
	class="timeline-placeholder"
	>
	<FAIcon
	icon="circle-notch"
	spin
	size="4x"
	/>
	</div>
	<div
	v-else
	class="timeline-placeholder faint"
	>
	{{ $t('timeline.no_statuses') }}
	</div>
	</template>
	</div>
	<div v-if="!embedded \|\| footerSlipgate" :class="classes.footer">
	<teleport
	:to="footerSlipgate"
	:disabled="!embedded \|\| !footerSlipgate"
	>
	<div
	v-if="timeline.fetcher.bottomedOut"
	class="new-status-notification text-center faint"
	>
	{{ $t('timeline.no_more_statuses') }}
	</div>
	<div
	v-else-if="timeline.fetcher.loadingOlder"
	class="new-status-notification text-center"
	>
	<FAIcon
	icon="circle-notch"
	spin
	size="lg"
	/>
	</div>
	<button
	v-else-if="timeline.minId !== ''"
	class="button-unstyled -link"
	@click.prevent="fetchOlderStatuses()"
	>
	<div class="new-status-notification text-center">
	{{ $t('timeline.load_older') }}
	</div>
	</button>
	</teleport>
	<!-- spacer to avoid having empty shrug -->
	<span v-if="embedded && footerSlipgate" />
	</div>
	</div>
	</template>

	<script src="./timeline.js"></script>

	<style src="./timeline.scss" lang="scss"> </style>
	diff --git a/src/composables/useVirtualScrolling.js b/src/composables/useVirtualScrolling.js
	index e56c3d0170..8db08dae57 100644
	--- a/src/composables/useVirtualScrolling.js
	+++ b/src/composables/useVirtualScrolling.js
	@@ -1,434 +1,397 @@
	-import { debounce, first, last, throttle } from 'lodash-es'
	-import { computed, nextTick, onUnmounted, ref, toValue, watch } from 'vue'
	+import { first, last, throttle } from 'lodash-es'
	+import { computed, nextTick, ref, toValue, watch } from 'vue'

	export function useVirtualScrolling({
	// For debugging
	name = 'Generic',
	// Master toggle
	enabled,
	// List of items
	list,
	// Container of items, used for measuring scroll position
	body,
	// vertical offset to account for fixed and sticky headers
	offset,
	// useScrollPosition composable, used to prevent dupicating instances
	scrollPositionInstance,
	// buffer zone, the amount of placeholder heights to include
	buffer,
	// whether to use scroll compensation when elements above anchor change
	scrollCompensation,
	// How to handle collapse/expansion (going from 0 elements to full and back)
	// - false - don't do scroll compensation at all
	// - 'height' - compensate scroll according to list's height
	// - 'item' - same as height but uses anchor element's top offset
	// instead of whole height
	collapseMode,
	// Placeholder height specification. Must be a function.
	// function will be called either:
	// - without arguments (for generic placeholder, i.e. buffer zone size)
	// - with id (for specific item placeholders)
	// function must return ref pointing to height
	getPlaceholderHeight,
	// Invert grow direction. Useful for chat views. Makes scroll compensation
	// work in reverse - adding items to bottom scrolls down, adding items to
	// top doesn't scroll up.
	invertDirection = false,
	}) {
	// # Suspension
	const unsuspendibleIds = ref(new Set())
	const changeSuspendState = ({ id, suspendable }) => {
	if (suspendable) {
	unsuspendibleIds.value.delete(id)
	} else {
	unsuspendibleIds.value.add(id)
	}
	}

	// # Heights mapping.
	const heights = ref(new Map())
	- const heightChart = ref([])
	- const updateHeightChart = debounce(() => {
	+ const heightChart = computed(() => {
	// Map every height and suspendable state
	const chart = list.value.map((item) => {
	const { id } = item
	const height = (() => {
	if (heights.value.has(id)) {
	return heights.value.get(id)
	} else {
	return getPlaceholderHeight(id).value
	}
	})()
	const suspendable = !unsuspendibleIds.value.has(id)
	const real = heights.value.has(id)
	return { id, height, suspendable, real, visible: true }
	})

	// Walk over the list to set top offsets
	chart.reduce((sum, item) => {
	item.top = sum
	return sum + item.height
	}, 0)

	- heightChart.value = chart
	- }, 32) // 32ms = ~30fps
	- watch([list, heights, unsuspendibleIds], updateHeightChart, {
	- immediate: true,
	- deep: true,
	- })
	- onUnmounted(() => {
	- updateHeightChart.cancel()
	+ return chart
	})

	const updateVirtualHeight = ({ id, height }) => {
	heights.value.set(id, height)
	}

	const {
	top: scrollY,
	scrollBy,
	vHeight,
	hasReachedTop,
	hasReachedBottom,
	} = scrollPositionInstance

	// Real scroll boundary, relative to body's bounds
	const topScrollBoundary = ref(0)
	const bottomScrollBoundary = ref(0)

	const updateBoundaries = () => {
	if (!toValue(enabled)) return
	if (!body.value) return // Not mounted yet

	const { top } = body.value.getBoundingClientRect()

	const distanceItemTopToWindowTop = 0 - top + (toValue(offset) ?? 0)
	const distanceItemTopToWindowBottom = vHeight.value - top

	// Technically, bottom scroll boundary should be distance
	// from element's top border to window's bottom border,
	// but it just so happens that it is equal to this.
	// You can verify it by drawing the boxes and measuring
	// distances yourself, I know I did. Geometry, man...
	topScrollBoundary.value = distanceItemTopToWindowTop
	bottomScrollBoundary.value = distanceItemTopToWindowBottom
	}

	const windowWatcher = watch(vHeight, updateBoundaries)
	const scrollWatcher = watch(scrollY, updateBoundaries)
	const heightWatcher = watch(heightChart, updateBoundaries)
	const bodyWatcher = watch(body, updateBoundaries)

	watch(vHeight, (neu, old) => {
	if (toValue(invertDirection)) {
	// Only compensate (stick to bottom) when shrinking
	scrollBy(0, Math.max(old - neu, 0))
	// compensating in other direction causes overscrolling
	}
	})

	const pauseWatchers = () => {
	windowWatcher.pause()
	scrollWatcher.pause()
	heightWatcher.pause()
	bodyWatcher.pause()
	}
	const resumeWatchers = (skipUpdate = false) => {
	windowWatcher.resume()
	scrollWatcher.resume()
	heightWatcher.resume()
	bodyWatcher.resume()
	if (skipUpdate) return
	updateBoundaries()
	}

	watch(enabled, (val) => {
	if (val) {
	resumeWatchers()
	} else {
	pauseWatchers()
	}
	})

	// # Visiblity
	// Add buffer zone to boundary, equal to approx 10 items heights
	const bufferZone = computed(
	- () => getPlaceholderHeight().value * (toValue(buffer) ?? 10),
	+ () => getPlaceholderHeight().value * (toValue(buffer) ?? 5),
	)

	+ // Stuff that's on screen
	const checkVisible = ({ top, height }) => {
	const itemTopBoundary = top
	const itemBottomBoundary = top + height

	+ // Include buffer zone
	+ const finalTopScrollBoundary = topScrollBoundary.value
	+ const finalBottomScrollBoundary = bottomScrollBoundary.value
	+
	+ // To be visible, item's bottom boundary shoud be below top scroll boundary)
	+ const isBelowTopBoundary = itemBottomBoundary > finalTopScrollBoundary
	+ // To be visible, item's top boundary shoud be above bottom scroll boundary)
	+ const isAboveBottomBoundary = itemTopBoundary < finalBottomScrollBoundary
	+ // This accounts for the case where item's boundaries exceed scroll boundary
	+
	+ return isBelowTopBoundary && isAboveBottomBoundary
	+ }
	+
	+ // Same thing but including buffer zone
	+ const checkRendered = ({ top, height }) => {
	+ const itemTopBoundary = top
	+ const itemBottomBoundary = top + height
	+
	// Include buffer zone
	const finalTopScrollBoundary = topScrollBoundary.value - bufferZone.value
	const finalBottomScrollBoundary =
	bottomScrollBoundary.value + bufferZone.value

	// To be visible, item's bottom boundary shoud be below top scroll boundary)
	const isBelowTopBoundary = itemBottomBoundary > finalTopScrollBoundary
	// To be visible, item's top boundary shoud be above bottom scroll boundary)
	const isAboveBottomBoundary = itemTopBoundary < finalBottomScrollBoundary
	// This accounts for the case where item's boundaries exceed scroll boundary

	return isBelowTopBoundary && isAboveBottomBoundary
	}

	const heightChartVisibility = ref(null)

	const recalculateChartVisibility = throttle(
	(newVal, oldVal) => {
	heightChartVisibility.value = heightChart.value.map(
	(heightChartItem) => ({
	...heightChartItem,
	visible: checkVisible(heightChartItem),
	+ rendered: checkRendered(heightChartItem),
	}),
	)
	},
	32, // 32ms = ~30fps
	{ leading: true, trailing: true },
	)
	watch(
	[heightChart, topScrollBoundary, bottomScrollBoundary, bufferZone],
	recalculateChartVisibility,
	{ immediate: true },
	)

	const heightChartGrouped = computed(() => {
	- const chart = enabled.value ? heightChartVisibility : heightChart
	+ const chart = heightChartVisibility
	// Group invisible items into spacers
	return chart.value.reduce((acc, heightChartItem, index) => {
	- const { suspendable, visible, height, top, id } = heightChartItem
	- const present = visible \|\| !suspendable
	+ const { suspendable, rendered, visible, height, top, id } =
	+ heightChartItem
	+ const present = rendered \|\| !suspendable \|\| !enabled.value
	if (present) {
	- return [...acc, { type: 'item', height, top, id }]
	+ return [
	+ ...acc,
	+ { type: 'item', height, top, id, visible, rendered, present },
	+ ]
	} else {
	// Reusing previous item if possible
	const previousItem = acc[acc.length - 1]
	const usingPreviousItem = previousItem?.type === 'spacer'
	// We only really care for height and id of spacer, everything else
	// is just for debugging
	const spacer = usingPreviousItem
	? previousItem
	: {
	type: 'spacer',
	top: Number.POSITIVE_INFINITY,
	height: 0,
	id: `i${index}`, // used for v-for key attribute
	ids: new Set(),
	}

	spacer.ids.add(id)
	spacer.height += height

	if (top < spacer.top) spacer.top = top

	// If we used previous item there is no need to push it to array
	if (usingPreviousItem) {
	return acc
	} else {
	return [...acc, spacer]
	}
	}
	}, [])
	})

	// ## Scroll compensation
	watch(
	- heightChart,
	+ heightChartVisibility,
	async (newVal, oldVal) => {
	if (newVal.length === 0 && oldVal.length === 0) return 0
	const explosion = oldVal.length === 0 && newVal.length !== 0
	const implosion = oldVal.length !== 0 && newVal.length === 0

	const compensation = toValue(scrollCompensation)
	const diff = (() => {
	if (explosion) {
	if (!compensation) return 0
	if (toValue(collapseMode) === 'height' \|\| toValue(invertDirection)) {
	const newBottomElement = last(newVal)

	return newBottomElement.top + newBottomElement.height
	} else {
	return 0
	}
	} else if (implosion) {
	if (!compensation) return 0
	const oldBottomElement = last(oldVal)

	return 0 - oldBottomElement.top - oldBottomElement.height
	} else {
	const contextChange = (() => {
	// HACK ignore date separators and fake messages in chat view
	const oldIds = new Set(
	oldVal
	.map(({ id }) => id)
	.filter((id) => !id.startsWith('fake-')),
	)
	const newIds = new Set(
	newVal
	.map(({ id }) => id)
	.filter((id) => !id.startsWith('fake-')),
	)

	if (oldVal.length <= newVal.length) {
	return [...oldIds].some((id) => !newIds.has(id))
	} else {
	return [...newIds].some((id) => !oldIds.has(id))
	}
	})()
	if (contextChange) {
	return 0
	}

	- /* Ok, here's a thing. Both Timeline and Conversation have virtual scrolling.
	- * But since Conversation can be inside Timeline (in fact it's chock-full of
	- * them) it creates a problem. Virtual scrolling involves a lot of scroll
	- * compensation. Elements appearing, disappearing, changing sizes etc. What
	- * happens if a single conversation gets expanded? Conversation sees influx
	- * of new posts and compensates for them appearing above to keep old items
	- * in screen. Next, timeline sees that Conversation changed height and ALSO
	- * compensates for that changed height. We get double the compensation and
	- * result ends up being all wrong, we scrolled way past the conversation.
	- *
	- * Easy, just don't compensate in Timeline, right? Wrong. We still have two
	- * cases where we do want compensation in Timeline - all the cases that
	- * aren't handled by Conversation. Namely:
	- * - Change in amount of Conversations
	- * - Change in height of freshly-rendered Conversations.
	- *
	- * First one is simple. We scrolled down and made a new post - it appeared
	- * at the top but we don't want screen to scroll.
	- *
	- * Second one is tricky. Here's a real situation:
	- * 1. We scroll down in Timeline.
	- * 2. Open a thread (navigate to it, not expand!)
	- * 3. Press "back".
	- * Now we have a situation: vue-router restored our scroll position but
	- * since Timeline was removed and re-created its heightChart is full of
	- * fake placeholders. This naturally means our actual scroll position is
	- * all wrong. TODO: Store heightchart in timelines store?
	- * But it gets worse - when you start scrolling up elements begin getting
	- * their real heights back, and since there's no compensation timeline gets
	- * all jumpy! We can somewhat live with wrong scroll position but timeline
	- * being jumpy is unacceptable.
	- *
	- * TODO: Probably a good way to avoid it all is just to:
	- * - Don't do scroll compensation when nested
	- * - For expanded conversations use animated priority scrollTo
	- * something to do for Virtual Scrolling 2.2
	- *
	- * So, basically - if amount of elements changes, or amount of REAL elements
	- * changes - compensate anyway even if compensation is disabled.
	- */
	const isSticking = toValue(invertDirection)
	? hasReachedBottom.value
	: hasReachedTop.value
	- const compensateBecauseLengthChange =
	- !isSticking && newVal.length !== oldVal.length
	- const newReal = newVal.filter(({ real }) => real).length
	- const oldReal = oldVal.filter(({ real }) => real).length
	- const compensateBecauseReal =
	- oldReal > 0 && newReal > 0 && oldReal !== newReal
	-
	- if (
	- !(
	- compensation \|\|
	- compensateBecauseReal \|\|
	- compensateBecauseLengthChange
	- )
	- ) {
	+ if (!compensation) {
	return 0
	}

	// Section is used for debugging only
	const getShift = (section, a, b, find, getter) => {
	const aItem = find(a)
	if (!aItem) return 0
	const bItem = b.find(({ id }) => id === aItem.id)
	if (!bItem) return 0
	return getter(bItem) - getter(aItem)
	}

	const expansion = (() => {
	if (newVal.length < oldVal.length) return 0
	return getShift(
	'expansion',
	- oldVal.filter((item) => checkVisible(item)),
	+ oldVal,
	newVal,
	(list) =>
	list.find(
	({ top, height }) => top + height < topScrollBoundary.value,
	) ?? first(list),
	({ top, height }) => top + height,
	)
	})()

	const inverseCompensation = (() => {
	if (!toValue(invertDirection)) return 0
	if (newVal.length < oldVal.length) return 0
	const shift = getShift(
	'inverse',
	- oldVal.filter((item) => checkVisible(item)),
	+ oldVal,
	newVal,
	(list) =>
	list.findLast(({ top }) => top > bottomScrollBoundary.value) ??
	last(list),
	({ top }) => top,
	)
	if (isSticking) {
	// Don't do 99999 here, it breaks virtual scrolling
	const { height } = body.value.getBoundingClientRect()
	return height // keep sticking
	} else {
	return shift
	}
	})()

	const collapsing = (() => {
	if (newVal.length >= oldVal.length) return 0
	return -getShift(
	'collapse',
	newVal,
	oldVal,
	(list) => first(list),
	({ top, height }) => top + height,
	)
	})()

	return (
	(toValue(invertDirection) ? inverseCompensation : expansion) +
	collapsing
	)
	}
	})()

	if (diff !== 0) {
	// Scroll by amount offset changed to keep it in view
	topScrollBoundary.value += diff
	bottomScrollBoundary.value += diff
	await nextTick()
	await scrollBy(0, diff)
	}

	resumeWatchers()
	},
	{ flush: 'post' },
	)

	// Misc
	const reset = () => {
	unsuspendibleIds.value = new Set()
	heights.value = new Map()
	}

	return {
	heightChart: heightChartGrouped,
	changeSuspendState,
	updateVirtualHeight,
	pauseWatchers,
	resumeWatchers,
	updateBoundaries,
	reset,
	}
	}
	diff --git a/src/composables/useWindowScroll.js b/src/composables/useWindowScroll.js
	index 1746596b02..c3b287b2a0 100644
	--- a/src/composables/useWindowScroll.js
	+++ b/src/composables/useWindowScroll.js
	@@ -1,24 +1,26 @@
	import { onMounted, onUnmounted, ref } from 'vue'

	export function useWindowScroll() {
	const x = ref(0)
	const y = ref(0)

	const update = (e) => {
	- x.value = window.scrollX
	- y.value = window.scrollY
	+ requestAnimationFrame(() => {
	+ x.value = window.scrollX
	+ y.value = window.scrollY
	+ })
	}

	onMounted(() => {
	- window.addEventListener('scroll', update)
	+ window.addEventListener('scroll', update, { capture: false, passive: true })
	update()
	})
	onUnmounted(() => {
	window.removeEventListener('scroll', update)
	})

	const scrollBy = (...args) => window.scrollBy(...args)
	const scrollTo = (...args) => window.scrollTo(...args)

	return { x, y, scrollBy, scrollTo }
	}
	diff --git a/test/unit/specs/composables/useVirtualScrolling.spec.js b/test/unit/specs/composables/useVirtualScrolling.spec.js
	index e37f91a881..3fbf1004c4 100644
	--- a/test/unit/specs/composables/useVirtualScrolling.spec.js
	+++ b/test/unit/specs/composables/useVirtualScrolling.spec.js
	@@ -1,385 +1,437 @@
	import { createTestingPinia } from '@pinia/testing'
	import { setActivePinia } from 'pinia'
	import { ref } from 'vue'

	import { useVirtualScrolling } from 'src/composables/useVirtualScrolling.js'

	const scrollPositionInstance = {
	x: ref(0),
	y: ref(0),
	vHeight: ref(768),
	vWidth: ref(1024),
	cHeight: ref(768),
	cWidth: ref(1024),
	scrollBy: vi.fn(),
	hasReachedTop: ref(false),
	hasReachedBottom: ref(false),
	}

	describe('useVirtualScrolling', () => {
	beforeEach(() => {
	setActivePinia(createTestingPinia({ stubActions: false }))
	vi.useFakeTimers()
	})

	afterEach(() => {
	vi.useRealTimers()
	vi.resetAllMocks()
	scrollPositionInstance.x.value = 0
	scrollPositionInstance.y.value = 0
	})

	it('should init boundaries and compute a height chart', async () => {
	const body = ref({
	getBoundingClientRect: () => ({
	top: 0,
	}),
	})
	const list = [...new Array(20)].map((i, index) => ({
	id: `${index}i`,
	}))
	const result = useVirtualScrolling({
	name: 'Test',
	enabled: ref(true),
	list: ref(list),
	body: ref(body),
	buffer: 3,
	offset: 0,
	getPlaceholderHeight: () => ref(100),
	scrollPositionInstance,
	})

	result.updateBoundaries()
	const items = [...new Array(11)].map((i, index) => ({
	id: `${index}i`,
	top: index * 100,
	height: 100,
	type: 'item',
	+ present: true,
	+ rendered: true,
	+ visible: true,
	}))
	+ items[8].visible = false
	+ items[9].visible = false
	+ items[10].visible = false
	const spacer = {
	type: 'spacer',
	top: 1100,
	height: 900,
	ids: expect.any(Set),
	id: 'i11',
	}
	await vi.advanceTimersByTime(32)
	expect(result.heightChart.value).toEqual([...items, spacer])
	})

	it('should update a height chart on list update', async () => {
	const body = ref({
	getBoundingClientRect: () => ({
	top: 0,
	}),
	})
	const list = ref(
	[...new Array(40)].map((i, index) => ({
	id: `${index}i`,
	})),
	)
	const result = useVirtualScrolling({
	name: 'Test',
	enabled: ref(true),
	list,
	body: ref(body),
	offset: 0,
	+ buffer: 10,
	getPlaceholderHeight: () => ref(100),
	scrollPositionInstance,
	})

	result.updateBoundaries()
	const items = [...new Array(18)].map((i, index) => ({
	id: `${index}i`,
	top: index * 100,
	height: 100,
	type: 'item',
	+ present: true,
	+ rendered: true,
	+ visible: true,
	}))
	+ for (let i = 8; i < 18; i++) {
	+ items[i].visible = false
	+ }
	const spacerOld = {
	type: 'spacer',
	top: 1800,
	height: 2200,
	ids: expect.any(Set),
	id: 'i18',
	}
	const spacerNew = {
	type: 'spacer',
	top: 1800,
	height: 2300,
	ids: expect.any(Set),
	id: 'i18',
	}
	await vi.advanceTimersByTime(32)
	expect(result.heightChart.value).toEqual([...items, spacerOld])
	list.value.push({ id: 'new' })
	await vi.advanceTimersByTime(32)
	await vi.advanceTimersByTime(32)
	expect(result.heightChart.value).toEqual([...items, spacerNew])
	})

	it('should update boundaries and compute a height chart on scroll', async () => {
	let topPosition = 0
	const body = ref({
	getBoundingClientRect: () => ({
	top: topPosition,
	}),
	})
	const list = [...new Array(20)].map((i, index) => ({
	id: `${index}i`,
	}))
	const result = useVirtualScrolling({
	name: 'Test',
	enabled: ref(true),
	list: ref(list),
	body: ref(body),
	buffer: 3,
	offset: 0,
	getPlaceholderHeight: () => ref(100),
	scrollPositionInstance,
	})
	result.updateBoundaries()

	const amount = 500
	topPosition -= amount
	result.updateBoundaries()

	const spacer1 = {
	type: 'spacer',
	top: 0,
	height: 200,
	ids: expect.any(Set),
	id: 'i0',
	}
	const items = [...new Array(14)].map((i, index) => ({
	id: `${index + 2}i`,
	top: (index + 2) * 100,
	height: 100,
	type: 'item',
	+ present: true,
	+ rendered: true,
	+ visible: true,
	}))
	+ for (let i = 0; i < 3; i++) {
	+ items[i].visible = false
	+ }
	+ for (let i = 11; i < 14; i++) {
	+ items[i].visible = false
	+ }
	const spacer2 = {
	type: 'spacer',
	top: 1600,
	height: 400,
	ids: expect.any(Set),
	id: 'i16',
	}
	await vi.advanceTimersByTime(32)
	expect(result.heightChart.value).toEqual([spacer1, ...items, spacer2])
	})

	it('should compensate for scroll when new items added on top', async () => {
	let topPosition = 0
	const body = ref({
	getBoundingClientRect: () => ({
	top: topPosition,
	}),
	})
	const listOld = [...new Array(10)].map((i, index) => ({
	id: `${index}ia`,
	}))
	const listNew = [...new Array(10)].map((i, index) => ({
	id: `${index}ib`,
	}))
	const list = ref(listOld)
	const result = useVirtualScrolling({
	name: 'Test',
	enabled: ref(true),
	list,
	body: ref(body),
	offset: 0,
	buffer: 3,
	getPlaceholderHeight: () => ref(100),
	scrollCompensation: true,
	scrollPositionInstance,
	})
	listOld.forEach((i) => {
	result.updateVirtualHeight({ id: i.id, height: 200 })
	})
	result.updateBoundaries()
	await vi.advanceTimersToNextTimerAsync()

	list.value = [...listNew, ...listOld]
	result.updateBoundaries()
	await vi.advanceTimersToNextTimerAsync()
	const amount = 1000
	expect(scrollPositionInstance.scrollBy).to.have.been.calledWith(0, amount)
	topPosition -= amount
	result.updateBoundaries()

	const spacer1 = {
	type: 'spacer',
	top: 0,
	height: 700,
	ids: expect.any(Set),
	id: 'i0',
	}
	const itemsNew = [...new Array(3)].map((i, index) => ({
	id: `${index + 7}ib`,
	top: (index + 7) * 100,
	height: 100,
	type: 'item',
	+ present: true,
	+ rendered: true,
	+ visible: true,
	}))
	+ for (let i = 0; i < 3; i++) {
	+ itemsNew[i].visible = false
	+ }
	const itemsOld = [...new Array(6)].map((i, index) => ({
	id: `${index}ia`,
	top: index * 200 + 1000,
	height: 200,
	type: 'item',
	+ present: true,
	+ rendered: true,
	+ visible: true,
	}))
	+ for (let i = 4; i < 6; i++) {
	+ itemsOld[i].visible = false
	+ }
	const spacer2 = {
	type: 'spacer',
	top: 2200,
	height: 800,
	ids: expect.any(Set),
	id: 'i16',
	}
	await vi.advanceTimersByTime(32)
	expect(result.heightChart.value).toEqual([
	spacer1,
	...itemsNew,
	...itemsOld,
	spacer2,
	])
	})

	it('should compensate for scroll when items are removed from top', async () => {
	let topPosition = 0
	const body = ref({
	getBoundingClientRect: () => ({
	top: topPosition,
	}),
	})
	const listA = [...new Array(10)].map((i, index) => ({
	id: `${index}ia`,
	}))
	const listB = [...new Array(10)].map((i, index) => ({
	id: `${index}ib`,
	}))
	const listC = [...new Array(10)].map((i, index) => ({
	id: `${index}ic`,
	}))
	const list = ref([...listA, ...listB, ...listC])
	const result = useVirtualScrolling({
	name: 'Test',
	enabled: ref(true),
	list,
	body: ref(body),
	offset: 0,
	buffer: 3,
	getPlaceholderHeight: () => ref(100),
	scrollCompensation: true,
	scrollPositionInstance,
	})
	list.value.forEach((i) => {
	result.updateVirtualHeight({ id: i.id, height: 200 })
	})
	result.updateBoundaries()
	await vi.advanceTimersToNextTimerAsync()

	list.value = listB
	result.updateBoundaries()
	await vi.advanceTimersToNextTimerAsync()
	const amount = -2000
	expect(scrollPositionInstance.scrollBy).to.have.been.calledWith(0, amount)
	// topPosition -= amount // not doing this because it would overscroll
	result.updateBoundaries()
	await vi.advanceTimersToNextTimerAsync()

	const items = [...new Array(6)].map((i, index) => ({
	id: `${index}ib`,
	top: index * 200,
	height: 200,
	type: 'item',
	+ present: true,
	+ rendered: true,
	+ visible: true,
	}))
	+ for (let i = 4; i < 6; i++) {
	+ items[i].visible = false
	+ }
	const spacer = {
	type: 'spacer',
	top: 1200,
	height: 800,
	ids: expect.any(Set),
	id: 'i6',
	}
	await vi.advanceTimersByTime(32)
	expect(result.heightChart.value).toEqual([...items, spacer])
	})

	it('should exclude unsuspendable items from virtualization', async () => {
	let topPosition = 0
	const body = ref({
	getBoundingClientRect: () => ({
	top: topPosition,
	}),
	})
	const list = ref(
	[...new Array(20)].map((i, index) => ({
	id: `${index}i`,
	})),
	)
	const result = useVirtualScrolling({
	name: 'Test',
	enabled: ref(true),
	list,
	body: ref(body),
	offset: 0,
	buffer: 3,
	getPlaceholderHeight: () => ref(100),
	scrollPositionInstance,
	})
	list.value.forEach((i) => {
	result.updateVirtualHeight({ id: i.id, height: 200 })
	})
	result.changeSuspendState({ id: '2i', suspendable: false })
	result.changeSuspendState({ id: '3i', suspendable: true })
	result.updateBoundaries()
	await vi.advanceTimersToNextTimerAsync()

	result.updateBoundaries()
	await vi.advanceTimersToNextTimerAsync()
	const amount = 2000
	topPosition -= amount
	result.updateBoundaries()
	await vi.advanceTimersToNextTimerAsync()

	const spacer1 = {
	type: 'spacer',
	top: 0,
	height: 400,
	ids: expect.any(Set),
	id: 'i0',
	}
	const items1 = [
	{
	id: `2i`,
	top: 400,
	height: 200,
	type: 'item',
	+ present: true,
	+ rendered: false,
	+ visible: false,
	},
	]
	const spacer2 = {
	type: 'spacer',
	top: 600,
	height: 1000,
	ids: expect.any(Set),
	id: 'i3',
	}
	const items2 = [...new Array(8)].map((i, index) => ({
	id: `${index + 8}i`,
	top: (index + 8) * 200,
	height: 200,
	type: 'item',
	+ present: true,
	+ rendered: true,
	+ visible: true,
	}))
	+ for (let i = 0; i < 2; i++) {
	+ items2[i].visible = false
	+ }
	+ for (let i = 6; i < 8; i++) {
	+ items2[i].visible = false
	+ }
	const spacer3 = {
	type: 'spacer',
	top: 3200,
	height: 800,
	ids: expect.any(Set),
	id: 'i16',
	}
	await vi.advanceTimersByTime(32)
	expect(result.heightChart.value).toEqual([
	spacer1,
	...items1,
	spacer2,
	...items2,
	spacer3,
	])
	})
	})

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