Nope.

• Matrix is promising, but encryption is still extremely brittle.
• SimpleX is promising, but without multi-device support, it’s a non-starter.
• Jami is promising, but I can’t get the client to work on Arch (it just segfaults), and the answer to my ticket was “Arch isn’t supported.” In my case, it’s because my Qt was newer than their required version - it compiled, but just segfaulted. I lost interest at that point.
• Tox - shoot. I try Tox every once in a while. I know that I uninstalled it once because the mobile app sucked my battery down, but I don’t remember if it has some fundamental flaw. I think it doesn’t support multi-device? I’ll have to check it again.
• Lichat looked interesting, but Ocelot hasn’t been updated since '21; it’s a small project with not a lot of documentation beyond the spec

I may have looked at Session at one point, but don’t remember why I put it in the No category. I’ll have to review it again.

XMPP may be the elephant in the room. I used XMPP for years, back before Google supported it, and after. I know a lot of people advocate it, and I think it’s a reasonable option; it’s certainly well-established. It leaks a lot of metadata, but then, it wasn’t designed with security in mind - all of the security has been bolted on after the fact, frankenstein mode. So has multi-participant chat. In fact, most features have been tacked on, and I guess that’s why I avoid it these days. Nothing seems well-integrated and reliably functioning. But YMMV; it may be the best option at the moment.

XMPP