One of the main issues I have is that due to the floating elements, there is now a border around window controls buttons (minimize, maximize, close). Because of this, when the window is maximized, you cannot simply move the mouse to the right top cor...
Some shortcuts, such as new tab (Ctrl+T), new window (Ctrl+N), are reserved, so they cannot be handled/overwritten by websites, while others, such as take shreenshot (Ctrl+Shift+S), are not, so websites can handle them or overwrite them with event.pr...