WebEx has an Audio Only mode that you can easily swipe in and out of. It makes muting/unmuting so much easier. That screen shows who is talking and a HUGE mute/unmute bottom. Considering that muting is part of our normal etiquette and we don’t want to be fumbling for the unmute button, a mode like this would be very helpful.

And in video mode, make mute/unmute it’s own big ol button.

If I’m dreaming big, I would also incorporate earbud/airpod compatibility for a double click/tap to mute/unmute.