We got a modern BYD recently as a rental on a holiday that had this, it was really annoying. Anytime anything happened the car beeped, it was near constant different beeps - super distracting. Most of the things could be turned off, but had to be turned off each time the car was started, on a tablet buried in various menus.
The attention thing also wasn't working great with the driver wearing sunglasses, it'd randomly start complaining. It also complained when the driver would lean forward to get a better view around a corner or anything.
It was a very fancy car, but I'd definitely never choose a car with these features, even though some may probably be useful.
I'd also never trust one of these companies not to change the policy on what they can do with this camera in the future, at which point you'll have little to no choice about it. Or, to find out they messed up and now anyone can watch you in your car.
I'd go back to the dealership and complain, either ask for a refund or a way to be able to cover the camera, especially if they only disclosed it as you got the car.