Several bluetooth headsets use 2 separate drivers/services for either just audio or handsfree calling. Windows 11 has eliminated the options for which one of these drivers you’ll be using. This causes the handsfree calling to always be active, making the bandwidth for sound to be shared with your microphones audio, resulting in low audio quality.
Until Microsoft fixes this the way to fix it is 1: Go to the old sound device manager (can be found at the bottom of the new options) 2: Go to recording and disconnect(not disable) your headphones microphone 3: Go to playback, if your headphones are still connected on this tab go to step 5 4: Wait until your headphones reconnect(Should be automatic, takes about 30 seconds) 5: If your audio still isn’t working disable and reenable the playback device
Well that’s all, your headphones should be working now, however if you turn your headphones/pc/bluetooth off you will have to repeat these steps