I once saw someone say that it’s to make reaching the upper half of the screen easier.

Usually convenient for pro max models so they can reach apps easier as the screens are large

That’s Reachability, so you can one-hand the device and still reach the top half of the screen

To reach app icons with one hand easily

I don’t even know how you did this lol

my old phone’s screen was not working from the top part so the reachability helped me a lot

Wallpaper please

Masturbate mode