UX has to be really good. Will check it out later.
Discussion
Keet is open source Zoom. Session is the telegram. For work collabs, have you checked out Element yet? (https://element.io)
Not saying they wouldn't be better on Nostr but the existence of these 3 means Nostr devs won't be so motivated yet.
(but when they are these are open source so it'll be easy.)
Forgot about session. Haven’t really tried it out yet