For chat: IRC, Stoat, Fluxer, Root, Zulip, Matrix, Slack, Teams, Guilded.

For voice/video: Mumble, Teamspeak, Jitsi Meet, also several of the above.

Perfect 1:1 drop in hassle free replacement with the exact same feature set? No, there isn’t.

Viable alternatives that aren’t too bad to learn? There are many.

https://github.com/laylavish/uBlockOrigin-HUGE-AI-Blocklist

I found a Pi Hole blocklist that filters out known ai slop websites but even then they’re still clogging up my DDG result. Such a pain.

Also: Phantasy Star is great! Have you played the Sega Ages release? It adds some really cool stuff to make it more playable.