PrivacyScore hosts lists of websites that are contributed by its users. You can browse our collection here.
The list is filtered by tag projects Remove Filter
The listing is ordered according to the list popularity, i.e., the lists with the most views are shown at the top.
A list of Free Software desktops environments taken from https://en.wikipedia.org/wiki/Comparison_of_X_Window_System_desktop_environments enriched with some more projects I know of which are not in that list.