Signal the Protocol is good, & these are good adaptations of it. #SimpleX is what I recommend most typically among my circle. The basic idea of "2 relays, 1 per side, instead of one signal dot com for both sides of the chat" is a really easy no-cost privacy-win concept to communicate to technotypicals 🙂

Awesome I haven't heard of oxchat or nextcloud talk.. thanks for that.

How does 0xchat call privacy compare to the others? Guessing its routed through their servers

Not sure on the details. 0xChat has written about it.