Steps to reproduce:
Option click the desktop
The orion window will defocus, not disappear.
Orion, OS version; hardware type:
Fortrikka All apps 'disappear' for me when doing this?
Oh, oops. I tried it with the finder and it did not disappear, so I may have forgotten about macos's native features. Nofix then…
To explain what happened, desktop is considered part of Finder. When you hide all apps, the app on the top left corner that shows is Finder. Therefore, option-click wouldn't hide Finder's window.