to researchers, Team Over (Option 2) is much cleaner and more hygienic.
Why hygiene experts love the “Over” method:
When the paper hangs over the front, your fingers only touch the exact pieces of paper you are going to use. However, when the paper hangs “under” against the wall, your knuckles and fingers are much more likely to brush against the bathroom wall or the holder itself when you try to reach for it.
Because bathroom walls can harbor hidden bacteria, touching the wall every time you reach for paper