You can now use your Android phone as webcam on Windows 11
Briefly

To get things working you'll also need the Link to Windows app installed on your mobile device with Microsoft specifying version 1.24012* or higher is required.
You'll then need to make sure you are part of the Windows Insider program and head to Settings > Bluetooth & devices > Mobile devices and select "Manage devices" and allow your PC to access your Android phone.
Read at GSMArena.com
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