I've been using a camera cover for years. A piece of bent black cardboard first, a professional and almost invisible plastic slider now. There are so many of t

I've been using a camera cover for years. A piece of bent black cardboard first, a professional and almost invisible plastic slider now. There are so many of them on Amazon, searching for laptop camera cover slide. And I don't even use Windows. I run Ubuntu but I want to be sure that the camera doesn't see anything when it's supposed to be off.