yeah by the "cameras have done for years" thing I was just saying it would make sense (to me) for a FFC to behave like a rear camera. although I do understand the argument for using it like a mirror, I would prefer it to be otherwise.
and true, the FFC camera is mainly for your face and whatnot. I dont particularly NEED it to be different, just would prefer to see how the image is going to turn out, rather than a flipped version of it
You don't want that, everything would be backwards. When you moved your hand to the right, it would show on the screen going to the left, the opposite direction. If you turned your face one way, it would turn the other direction on the screen. It would be completely disorienting.
my goal is for the pre-snapped orientation of image on the screen to be "correct" ("as if another person would see you") for reasons below:
That's not possible, the way people see you is how it shows at the end. That is the correct orientation, that is what you actually look like. Its why its often weird seeing pictures of yourself, you never look right to yourself but to everyone else it looks correct. It's because you only ever see a backwards reflection in the mirror and not the real you. You will notice that in pictures your hair is parted on the wrong side or a freckle is on the wrong cheek, but really its right.
To help make sense of it think of text. Your first image is backwards because they are showing you a mirror image, they are doing this because otherwise all of the movement would be backwards. You can't have movement go in the "correct as you would see it in a mirror" way, and things be the final version as others see it. Its impossible.
Here is an experiment to demonstrate:
Turn your rear camera on, then go face the mirror in the bathroom with the camera pointing at you and you looking at the reflection of the screen in the mirror. Try to turn your head the way you want it or get things lined up left and right. Do you see how confusing and weird it is? That is what you are asking for.