My group and I floated around different services for a while, self-hosting what we could. The requirements for us were really just a server with text channels and persistent messages, voice chat, and screen sharing.

We tried:

• Stoat (Revolt at the time) but we moved on before voice and video were rolled out.
• Matrix but voice and video weren’t really feasible.
• Steam chat but messages are deleted after 2 weeks and screen share didn’t really work.
• Teamspeak 6 was amazing for voice and video but chat was really only useful while online as messages aren’t really stored anywhere to load what was sent while you were offline, so we kept Steam chat for general conversations.

We finally landed on GameVox recently which has good voice and video, easy discord server import for channels and permissions, good chat features, and an extremely responsive dev who fixes issues almost immediately. I find that it isn’t as pretty as other alternatives out there and unfortunately it isn’t open-source, but the additional features compared to the other options will probably make it our new home for quite a while.