What’s the little camera icon for?

What does the camera icon actually do? I would think it takes a photo. But if it does I can’t find it.

If it doesn’t take a photo what am I to do with it?

It’s for pointing/positioning the camera during install. That’s all it does. You can’t save the picture it takes. Remember, it’s a VIDEO camera. You can save videos.

More info is at the support website aka the owners manual