Discord age verification now locks stage channels, DMs, and adult content behind four ID methods — each with different privacy trade-offs worth knowing.
It’s also very easy to set up your own Matrix server with Tuwunel or Continuwuity. I don’t know about the state of hosting your own XMPP server, but I assume it’s just as easy.
Fluxer?
Fluxer has no E2EE yet, and no Federation. But it’s very easy to set up your own server.
It’s also very easy to set up your own Matrix server with Tuwunel or Continuwuity. I don’t know about the state of hosting your own XMPP server, but I assume it’s just as easy.