As an inspiring streamer. I think it'll great to use Character Animator for Avatars in Live streams. The only problem I'm seeing right now is it can only do one user at a time.

It would be great if you could make multiple puppet scenes and set them up with different video inputs. This way more than one puppet can stream Live in C.A.

Critically Awkward has the right idea but they're using different computers for each user.
https://www.youtube.com/watch?v=MlW8G2qDybk