How to Hide All Other Windows Except Active App on Mac OS
Want to quickly focus your attention on the active application in Mac OS by hiding all other windows? There’s an excellent little-known keyboard shortcut and menu item that does exactly that, and when executed properly you will hide literally every window and open application on the Mac except for the currently active application.
This is an incredibly useful keyboard shortcut and feature if your Mac screen is overloaded with a million windows and apps and you want to quickly dismiss unused background apps, without having to quit them or arrange any other windows. All this does is hide the inactive application windows, it doesn’t close anything, so you can easily get to the hidden apps again if need be.