I am a pro artist and there is certainly some of this going on when I take a photo but to be quite honest the default photo UI is just so shitty compared to grabbing a huge ring to adjust your focus, and snapping a couple quick photos around your estimate of what the right f-stop for the situation is, that I really just don't want to get into more than trying to get a decent angle of natural lighting and some composition I don't hate.

Also as Scalzi notes, the phone's wide-angle lens is rarely the right choice for a lot of good shots, and yet it's all that's available unless I wanna start carrying unwieldy accessories all the time.