Now I wonder about performing together? Everything I've seen that looks like a live Zoom performance of 10-20 musicians is actually recorded separately (with a click track) and then edited together in a video to make it look like it's Zoom.
But now that the music quality is there... Zoom could conceivably broadcast a click track (e.g. the host's audio that would go to performers' speakers but not the audience's, or even the host being a conductor or lead performer), performers would play "solo" (without hearing each other), but then the central Zoom server would wait for and cache every performer's audio until they were all received, with a suitable buffer, and then output it mixed, to the audience, synchronized to the host's (click-track) audio (timecodes).
And unlike normal Zoom calls where it only ever transmits 1 or 2 audio streams (the loudest ones at the moment), it would always mix all of them.
It's probably complicated enough that it wouldn't be worth Zoom's effort, and also niche enough not to be worth a startup developing a separate product for it... but it certainly seems doable, no?