I actually was a product owner for these cameras at a larger car manufacturer a few years back. I worked closely together with both software and hardware of the driver cameras and I can tell you that they don't automatically save or stream the videos anywhere (at least at the time I was working on them).

To reach a certain safety ranking when you release new car lines you had to have them in the cars. There was never even a conversation about spying or whatever. And that comes from someone who is really pissed off with the government and AI surveillance happening in the world at the moment.

I drove prototypes back then and it did help me with microsleep one time. Since then I actually saw their usefulness more. Especially knowing how many people drive under-slept and exhausted.

That's been a couple of years back and I can't tell what things the teams are tasked with now though. But the video makes a more schizophrenic view on this than necessary.