I'm going to subtoot @atomicpoet's recent threads about the variety of #Fediverse platforms an people's unwillingness to look beyond #Mastodon here, with my personal opinion on what is the fundamental issue with all of the existing platforms: that even when they were born after and with the intent to support #ActivityPub, they were not designed with a clear separation between the server side (who should just be exchanging and storing activities) and the frontend (with which the user interacts).