group video calls in xmpp?

I heard in dino you could do that https://fosstodon.org/@dino/107787204408646020

I don't have anyone to test it, but I'm guessing it'll work as said. how about between apps like conversations, gajim and dino?

on each app pages the features aren't clear whether it does these things.

also, for security reasons i'm thinking of when xmpp will implement something like totp.