Apple? The people which removed the menu from the window and keep it separate to tease all users? Maximized windows and full-screen are itself a pain. I cannot use MacOS. Finder is especially bad. The partially weird idea of GNOME (Hamburger-Menu) is also a copy of CSD-Style. Putting that aside GNOME did some really good things (keyboard-centric usage, dash and overview instead of a desktop, no desktop-icons and syst…
The separated window menu which is always attached to the top of the screen, is a usability win. It gives you much more leeway to move your mouse and hit the target you're aiming for. See: Fitt's Law.
On 4k 27", when not scaling to make it look like 1080p, the menu is nowhere close to what I am working on, and often had to move over multiple other applications.