Microsoft is developing a "Soundscape" panel to replace the old Sound control panel. The new feature will take over the current reliance on the Control Panel for changing sound settings ...

To fix this, you have to change the Sound Control Panel settings. You can open the Sound Control Panel via the Windows 11/10 Settings app and the Control Panel.

Fix Sound and Audio Not working, No sound, Poor audio quality, Microphone, Speakers, Headphones, Bluetooth not working, etc. on Windows 11/10.

An internal build of Windows 11 had a hidden “Soundscape” page, presumably to replace 'Sounds' settings in the Control Panel.