What Is the Difference Between Windowed Fullscreen and Fullscreen

Is fullscreen better than windowed?

General: Games in Fullscreen have better Performance, just because the explorer.exe of Windows can take a break. In window mode, it has to render the game and averything else you have open. But, if it is fullscreen, it renders everything from your desktop when you shift there.

What is windowed fullscreen?

Borderless fullscreen windowed refers to a mode where the game presents the rendered image in a maximized window without borders making it cover the whole monitor.