The Matrix.org Foundation on Nostr: npub1trdnq…gussx Element Call embedded in Element Web/X is close to this, but ...
npub1trdnqrfstufc45awha43p6xy2n0v6czuhapzh4r09hap08dg0c6s9gussx (npub1trd…ussx) Element Call embedded in Element Web/X is close to this, but doesn't have the floor control yet that you need, sadly.