To use the Windows 11 multi-app camera feature, join the Windows Insider Program and install Insider Preview Build 26120.2702. Then go to Settings > Bluetooth & devices > Cameras, select your camera, ...
Now Windows 11 has been updated to allow Android smartphones to be used as a webcam wirelessly via Bluetooth much more easily and effectively. The Windows Smartphone Link app is used for this purpose.
If you ever wished you could access your iPhone or Android device directly on a Windows PC, Phone Link lets you do that. But ...