I think that what camera is used doesn't depend on the app but on the browser. In mine (Firefox) it asks me if I want to give permission to the app to use the m

I think that what camera is used doesn't depend on the app but on the browser. In mine (Firefox) it asks me if I want to give permission to the app to use the my camera AND it asks me which camera I want to give permission to. Chrome also has something like that (I think it's in the URL bar, an icon that looks like a video camera?) Anyways, hope this helps!