I do want to build on @v 's point because this is a hobby horse of mine.
I always say that Fediverse/ActivityPub/Mastodon isn't actually decentralized. Rather, it is recentralized around instances, and throughout all of this time of development, it seems to reinforce a philosophy that ignores the empowerment of users, preferring to empower instance admins and developers looking to impose their ideas of user experience on users.
And I really think that's a shame, so I want to call it out as often as I can.
This is just another instance of user empowerment being left to second class status.
All of the people in comments saying that a user can just change instances or start their own instance or whatever else are just promoting that same philosophy: The user is asked to work to avoid the ones who actually have power in this organizational philosophy.
It's one of the big issues with this platform that I don't think gets enough attention, but isn't going to be solved.