Keystroke GUI Exit

This mod allows you to exit a GUI by using your movement keys. For instance, if you are in your inventory or a chest gui, you can exit quickly by pressing a movement key. This mod can be fully done in vanilla and will not flag or ban you on any anticheat, however some servers may restrict the mod so use at your own risk.

Since this is an original idea, most servers will not have restrictions on it. This mod provides the same advantage as Lunar Client's Modern Keybind Handling option, so I heavily doubt most servers will restrict it.