OK, it’s only for a short period. But in the vehicle settings, rear camera, you can select to keep the camera active for about 15 seconds after shifting into drive. There is a touch button to cancel it faster.

 

Yep.
That has bitten me though... trying to do some parallel parking and having to mess with it to see. I returned to default.

 

On my '20, the way I have it set, it will stay on until you reach 5mph. Use it all the time when parking in barn. I took some marking paint, and sprayed a spot on the floor, when rear bumper clears it, it's time to stop.
Just have to stop before I go in, throw in reverse for a second, and idle on in.