I believe Alt+F4 closes the window that had focus when you opened the switcher, not the currently selected app in the switcher.
I think that either Alt+F4 needs to be intercepted and thrown away when the switcher is open, or it needs to close the currently selected app in the switcher.
I believe Alt+F4 closes the window that had focus when you opened the switcher, not the currently selected app in the switcher.
I think that either Alt+F4 needs to be intercepted and thrown away when the switcher is open, or it needs to close the currently selected app in the switcher.