Sometimes you don`t want anyone to see which windows you have open on your desktop (for example, free time stuff during working hours), so for these cases it is useful to have a tool like Hide My Windows.
In Hide My Windows you just indicate what you want the secret key combination to be, and when you use it the programs, windows, etc open at that moment are instantly hidden. They don`t close, just hide as if they didn`t exist.
The user can configure in Hide My Windows the type of windows and programs they want to hide. In other words to filter programs and only hide certain ones when you use your key combination.