Surface Laptop 3 basically same device as Surface Pro 7 Camera works.

[alex32012]

Camera works after USB mapping in windows using USBToolbox shows up as usb device Surface Front Camera

[Rainringgoaway]

Maybe sp7 FrontCam isn't driver on Usb side. Unlike Sb3.

[badstorm]

Since the conversation is dated I am closing the issue and moving it as a conversation.