So about a month ago my wireless headsets (have two) both stopped playing sound in Windows 11.
They work when in headset mode, but not as headphones. I've tried everything, uninstalling Bluetooth drivers (twice), removing and repairing headsets in Bluetooth.
When I do test device I can see the sound meter moving, but nothing is coming through the headphones.
The only thing I notice is that in the sound options the default format is greyed out.