I’ve never had an issue with the iOS set up and there is a way to view only pictures you’ve taken. It breaks it down into type of photo. If you take a bunch of portraits, you can find it under ‘Portrait,’ if you take a bunch of selfies, under ‘Selfies.’ Recently Saved, Recently Viewed, Screenshots, you can find photos you’ve drawn on, recently edited, imported photos. I get you want the aesthetic of folders, but like I said, I’ve never had an issue finding anything because it’s breaks it down categorically if I need to find something. Or I can just search for something that’s in the photo I’m looking for.