https://www.osnews.com/story/142853/mwm-an-x11-window-manager-in-20-lines-of-code/ [osnews.com]
https://github.com/lslvr/mwm [github.com]
Is KDE too much for you? GNOME tries to do too much? Xfce still a bit too fancy? Do you need something smaller? Even more minimalist? What about a mere 20 lines of code which provide the absolute barest possible minimum of window management functionality?
You need mwm.
This is the smallest, actually usable window manager I know about. Even TinyWM is twice as large. However, it doesn’t let you launch programs, or assign key bindings. mwm does.
It will open a window, and let you switch between windows, that are always fullscreen. No titlebars, no virtual desktops, no menus, no nothing.
This is the true minimalist’s experience.