Oh BTW, how does my game looks off at wider aspect ratios? I can't check that out myselve.
At wider aspect ratios the game remains the same width, but the height gets cut off. If you're using Unity there is a setting on the Canvas Scale component where you can set it instead to keep the height the same and have the width extended instead. Some games will just do black bars on the sides, other games will expand the canvas so there's more usable screen space.