> I thought the whole point of these camera LEDs was to have them wired to/through the power to the camera, so they are always on when the camera is getting power, no matter what.

This definitely happened too on Mac in the past, then they went in damage control mode. Not only had Apple access to turn off the LED while the camera was filming, but there was also a "tiny" company no-one had ever heard off that happened to have the keys allowing to trigger the LED off too. Well "tiny company" / NSA cough cough maybe.

After that they started saying, as someone commented, that it requires a firmware update to turn the LED off.

My laptop has a sticker on its camera since forever and if I'm not mistaken there's a famous picture of the Zuck where he does the same.

I've got bridges to sell to those who believe that the LED has to be on for the camera to be recording.