Install wmanager by entering the following commands in the terminal:
sudo apt update sudo apt install wmanager
Description:
window-manager selection tool used at X startup
wmanager is a small X11 application for selecting a window manager at X startup. wmanager looks for a file named '.wmmanagerrc' in the user's home directory which contains a list of window managers; you can create such a file with wmanagerrc-update. You can also use wmanager-loop that runs window managers chosen by the user until told to exit.
Homepage: https://devel.ringlet.net/x11/wmanager/
Version: 0.2.2-2
Section: universe/x11