Borderless windowed does not fill up the entire screen. My screen is 2k but GPU can't take it so I have to play on 1080p. And that does this. How can I
How to force fullscreen games to play in windowed mode - gHacks Tech News
Magic Borderless on Steam
Play a Computer Game in Windowed Mode
technical issues windows - How to force Maximized Fullscreen mode in any game? - Arqade
GitHub - Codeusa/Borderless-Gaming: Play your favorite games in a borderless window; no more time consuming alt-tabs.
Comunidad Steam :: Guía :: B:AO How to: Borderless Windowed mode