IDK, XMPP group chats have always "jest werked" for me (though admittedly I haven't used them much). The difference between XMPP group chats and Matrix group c

IDK, XMPP group chats have always "jest werked" for me (though admittedly I haven't used them much). The difference between XMPP group chats and Matrix group chats is that Matrix servers replicate all the message history, whereas XMPP group chats are hosted on a single server. IMO the "bring your own account to a central server" model of XMPP is a good thing, but the "replicate all the things" model of Matrix is not.