Except fullscreen apps are actually a bit more than maximised windows: They remove both the top of the title bar and other operating system bars, leaving just t

Except fullscreen apps are actually a bit more than maximised windows: They remove both the top of the title bar and other operating system bars, leaving just the control interfaces, and content. For example, chrome would just have the tabs, address bar, and content, without operating system bars, and without the program titlebar.