Can you explain how that works in OBS so I can look into it and test it? When the application is working as a virtual camera, what scene source type do you add it as in OBS?
When a virtual camera is made in a program like VSeeFace it makes the vtuber area act like a camera without the UI and with custom backgrounds. It lets us use them in calls and collabs easier too. The OBS Source is Video Capture Device rather than window capture.