@Wolf480pl @rysiek @jerry @Aaron I do kind-of have questions about Matrix. From a distance it kind-of looks like they decided to reimplement XMPP with the latest fashion of JSON. And I still have to explore it's encryption situation.
As for SSB I'm starting to look into it, particularly with Git-SSB. And from what I've seen, the tech looks very elegant when dealing with group comms or reliability despite the clients. Though again I have to look at the encryption again.