This model is designed to merge Fvwm with Xfce. To run selected Fvwm configs on Xfce that make it a perfect WM. Xfce is an excellent application manager whereas Fvwm is one of the best window/virtual managers. This combination is light with unlimited functionalities.
Add this command "fvwm --replace" in .config/autostart/ and load Xfce. With the graphical Extension, the Installer adds and removes Fvwm extensions as per your choice. If any function or style is missing, check myExt config collection or create it yourselves.
To install, read setup/INSTALL.md