Use USB Webcam with Oculus Quest

I am working with a medical group at my university and they want a manipulated videostream (it will be tilted a few degrees) with the quest. I tried to work out a way with the "webcam"-class in unity (like this), but it does not work on the quest. Can anybody help me? I also heard on reddit, that it could be that the drivers were removed a few update ago (see here). I also found the post from a few months back with no answer (here).

Is there a way to do this, like loading the driver with the unity app or something else?

Thank you very much!