Window manager - ArchWiki - Arch Linux
https://wiki.archlinux.org/title/Window_managerA window manager (WM) is system software that controls the placement and appearance of windows within a windowing system in a graphical user interface (GUI). It can be part of a desktop environment (DE) or be used standalone.. Window managers are unique to Xorg. The equivalent of window managers on Wayland are called compositors because they also act as compositing …