I've never in my life touched macOS, but I'm writing a work about operating systems, so I need to say something about macOS too.
Wikipedia says that Quartz Compositor is the window manager of macOS. But there are other window managers for macOS, like Magnet and Spectacle.
I watched both Spectacle and Magnet in action on YouTube and they don't seem to me essentialy different than Quartz Compositor.
So I would like to know is the Quartz Compositor integrated in macOS like DWM is integrated in Windows and Magnet and Spectacle are slight extensions/modifications, or is it truly another window manager, like on Linux are xfwm4, i3, dwm, evilwm, openbox, etc.