Lo-Fi Games

Hi, i was playing in 1080 but i decided to try a lower resolution, and there i got my problem, full screen isnt working as full screen, its just as it is borderless window, if i use any other resolution under 1080 in full screen my game doesnt fit all my screen, is this intended? i really wanted to try lower resolution coz in my laptop my eyes get tired of things being so small. Anyway if anyone can tell me a way to at least increase UI size it would solve my problem the same.

Ty

If playing on steam (where I know this works) press alt enter (at the same time). Forces the current res to go fullscreen. And yes, it's the lower res at fullscreen, not 1080.

ty for the help