Full screen mode wasn't even a feature until OS X Lion 10.7 in 2011. Until then, the green button only Maximized a window; now you have to Option-click to get t

Full screen mode wasn't even a feature until OS X Lion 10.7 in 2011. Until then, the green button only Maximized a window; now you have to Option-click to get that behavior. I rarely, if ever use Full-Screen mode. I’m struggling to understand why you think the OS is designed around this use.