P2P group video calls don’t work well unfortunately. Most people barely have enough upload bandwidth to upload one video stream. Needing to upload a stream per peer is a nonstarter for most people.
"Peer-to-peer calls require more bandwidth than calls routed through a server and are thus not suited for a large number of participants. In the future, we plan to also develop calls via a forwarding server to solve resource issues on the client side and to allow for calls with more participants."
User B: Is user C's stream dead for anyone else? User A: I see user C. User C: Sorry, what? I'm right here.
Honestly, other than a 1-1 chat, I can't think of a situation where p2p is worthwhile. Even then, it's almost always better to use an SFU.