Why don’t the services like Zoom and Teams fix this on the server side?
(disclaimer: I work at Alphabet)
Here's another https://www.youtube.com/watch?v=oCrCkgjZEXQ
The RNNoise link from the bottom of that post runs the noise suppression in real time in JavaScript. Zoom et al. could do this client side while still doing proper E2E. (Although Zoom already uses more cou that I think it needs to...)