I can believe it: Stuff like this is not very well advertised to users so tons of useful shortcuts go unused regularly.
Bonus hotkeys:
WIN + X will also bring up a more helpful menu and allow you to do things like shut down, restart, sleep the computer using only a few keystrokes instead of clicking around.
WIN + right or left arrow will snap the screen to one side or the other, WIN + up maximizes, WIN + down will minimize