Yes, a lot has happened! The scene still has very much indie vibe, but there's a lot going on in the Atmosphere. Atproto blog has recently started showcasing some community projects so check it out: https://atproto.com/blog

>That still leaves governance of the protocol as a problem. That would ideally need to be untangled from Bluesky as well. But that seems doable as well.

The core part of the protocol is literally going through the IETF process now: https://atproto.com/blog/taking-at-to-the-ietf. It's happening.

Re: other things, it's up to the community to do this. You can get involved. BridgyFed is doing cross-protocol federation and has been doing for a while: https://fed.brid.gy/. I'm sure there are other things that could be done in that space.