I have.
Unfortunately, it appears that the Airpods Max switch to lower latency aka horrible quality when the microphone is being used.
So, the mic quality may be ok (Marques Brownlee's review has a good sample) but the sound quality is not helped at all for Zoom. (not that it would be)
I don't know if this is intended behavior, but it sucks.
(the best way to test: start a Zoom call and then play music, then without pausing, quit Zoom. The music will be horrible and then once Zoom is quit will switch back to normal)