Windows also has shortcuts to retrieve off-screen windows, but it's more difficult to remember so I have to google it every time this situation comes up.
I use the system menu (Alt+Space) all the time, mostly because I find that closing a window via Alt+Space, C is more convenient (keys close to each other for the left hand) than Alt+F4. And then knowing that M is for move and S for size is natural.
I use the system menu (Alt+Space) all the time, mostly because I find that closing a window via Alt+Space, C is more convenient (keys close to each other for the left hand) than Alt+F4. And then knowing that M is for move and S for size is natural.