DraStic

When I tilt my phone upright and back top the side, a curve appears at the top left of the screen. I'm on a Note 10+, if that helps.

Also, Ericbazinga convinced me to make an account here. I've known him for years.

The Note 10+ has curved corners on the screen itself. Best thing to do is that for the game you are playing, go into the menu and select "Edit Screens and virtual pad" while in landscape mode and move the screens to the desired position. You can then choose to save the layout just for that game, or globally for all games.

I didn't mean the slight curve on my phone screen. I meant it curves the corner of the game screen if I tilt it vertically then back horizontally.