Apple has, for 20+ years now, wrestled with workarounds to the Mac's central UI blunder: making all applications share a single menu that's glued to the top of the screen.
Every other windowing OS recognized that menus belong on their applications' main window frames, which makes the desktop an unlimited workspace.
Apple should have made the same transition with OS X, but, in true Apple fashion, petulantly refused to acknowledge that others got it right. So we're stuck with this idiotic swapping of menu contents behind the user's back. If you're temporarily done with an application and minimize it, revealing the one you were working with before... guess what? You're still using the menu for the application you "dismissed." Asinine.
Every other windowing OS recognized that menus belong on their applications' main window frames, which makes the desktop an unlimited workspace.
Apple should have made the same transition with OS X, but, in true Apple fashion, petulantly refused to acknowledge that others got it right. So we're stuck with this idiotic swapping of menu contents behind the user's back. If you're temporarily done with an application and minimize it, revealing the one you were working with before... guess what? You're still using the menu for the application you "dismissed." Asinine.