Have the same issue on my MBP with Sennheiser Pxa550. With Monterey I actually had to install a plug-in for Chrome that keeps my volume at max during meet calls.
List of my issues: - audio doesn't work - audio doesn't switch from call mode to HiFi mode - if I have a call running, it will not switch or work via my headphones - audio balance switches to right headphone ....
I tried every recepie and thread I found online. Nothing.
Apple sucks.
Funny thing tho, I actually have a pair of Jabra 75t. And they seem more stable than Pxa550.
Again - direct hate towards Apple. I'm guessing all works with Apple headphones, as they sprinkle that secret sauce in their drivers that nobody else has access to.