I don't have the camera app in my app grid, but sometimes I see the green dot and have no idea what is triggering it. I even disabled the camera permission for all apps and started to turn it on from scratch only for apps I find necessary, but didn't know what was triggering it.
I am not why this logging thingy isn't enabled by default, but I am very happy it's possible to turn it on.
Putting your finger there while swiping up triggers the camera.
So for me I get this green dot every time I unlock my phone which is very annoying and feels like a privacy issue.
Maybe that's the reason I sometimes get a green dot when I am unlocking my phone.
Tyvm for sharing this. IIRC, it's possible to change the camera icon in the lock screen to something else. Since I never use this button (I am one of those weirdos that use the camera control button instead), I think I'll change to something else.