The front camera is opposite the images. The right becomes north and the north becomes right, but this problem appeared after you reset the phone and this problem was not already present

There is nothing wrong with the camera. The image you see is the same as looking in a mirror because the camera is looking at you. The picture that is taken, is done by the camera "standing" in front of you. If you stand in front of someone, their right is on your left. The same for the camera, your right is to the left side of the camera.