Its not a bug, in windows 11, the left and right channels can be controlled independently, here is the proof.
Windows 11, Headphones Left channel and Right channel cannot be independently controlled
Using Sony WH-1000XM3's connected via Bluetooth
Bluetooth Core Specification 5.2, via What Bluetooth version is on my PC? (microsoft.com)
Originally I was having trouble getting stereo sounds on the headphones working at all (they worked perfectly in Windows 10), but they magically started working now. (Tested this by going to the control panel sounds settings).
In this screen, moving the Left/Right channel cannot be done independently, probably a bug?
Windows for home | Windows 11 | Devices and drivers
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