If your Mac has a built-in camera, or if you connect a compatible external webcam, by default you can use it with Windows.
To use a built-in or external camera with Windows:
Simply open a Windows application that uses a camera, you should be able to select the iSight or external camera for use with the application.
Note: If you are running a guest OS other than Windows 10 or 11, be sure you have USB video device class (UVC) drivers installed.
If you don't want Windows applications to be able use connected webcams or the built-in camera, you can disable camera sharing by doing the following:
Open the Control Center, right-click on the chosen virtual machine, and choose Configure.
Click Hardware and click Sound & Camera.
Deselect Camera.