The community home page got swapped around and now servers can put stuff in there.
Summary
Server home page feed
As a server owner, you can now set an ActivityPub feed in your server metadata, and if players have recently played on your server, they’ll see your server’s most recent announcements in the community feed on the FiveM/RedM homepage.
You can set this up as a server owner using the activitypubFeed serverinfo convar.