I can’t recall how many times I’ve been in photo mode and got the shot just right and then either nudged the controller a bit or thought “what if I do this?” fail and then can never get back to the same point.
A simple undo/ redo button for every action (even thumbstick movements if possible) would alleviate the impending doom involved in getting the perfect shot. Plus I think it would help improve creativity as you will always be able to get back to the point you were (stress free).