Yes, webrtc when done in p2p/mesh, is end-to-end encrypted, even when using TURN servers in between (these are relay servers when direct p2p is not possible).

Yes, webrtc when done in p2p/mesh, is end-to-end encrypted, even when using TURN servers in between (these are relay servers when direct p2p is not possible). Unfortunately mesh doesn't work out well when it's a conference call (many callers), so MCUs, SFUs, etc come to play.