Live Sound/Audio pros - Using a remote Zoom presenter as part of a live event with simultaneous back-and-forth audio-gct

[Bixby]

The main difference between computer to computer and computer to amplified auditorium is the computers don't amplify the local speaker back as you've pointed out, hence the need for special measures. If your mixer is digital and has a gate on it, you could also use that to clean it up.