When clicking on a link, we first check whether it is a link to a user. If it is, we check if it is a room member of the current room. If so, we invoke the user page. Otherwise, open the link as we do for other links.

This behaviour when the pointed-to user is not in the room can be modified in the future to prompt the user to create/open a DM with that user.

Type: add

• Mention someone in the room. Click the link. Verify that the user page is opened.
• Mention someone not in the room. Click the link. Verify that the matrix.to link is opened in your browser.