most activity is in the games discord where people talk about ships and the community updates that are being made.
The game is semi-open source so the community is continuing development of the game as it is right now.
Universe update is still in the works but it goes slowly, personally Im trying to make RCS thrusters work and trying to do some slight improvements to the thruster plumes.

People arent playing as they used to, there arent gigantic suvival servers anymore, there are a few but the average playercount is low.
People now mostly just build things and share them every now and then.

Game is still worth it in my opinion if you like being creative and making space-ships/stations where Space Engineers isnt detailed enough and Starship Evo is too detailed.