How can I move the menu bar under window title?
I actually like to move windows by the title bar and not move my mouse over the whole screen to the global menu.
Even with the global menu, you can still move windows by the titlebar. Furthermore, you've always been able to move windows by dragging a window while holding the Alt key. You can also disable the global menu entirely by removing the appmenu-gtk, appmenu-gtk3, appmenu-qt, and indicator-appmenu packages. (This does break the HUD however)