10. Enlightenment
Started long back in 1996 as a project to build a Window Manager for X11, Enlightenment, or simply called E, provides a graphical shell that can be used along with desktop environments like KDE and GNOME. In case you choose to use it along with EFL (libraries), it can act as a full-fledged Linux desktop environment. Bodhi Linux, a popular and lightweight Linux distro, earlier shipped with Enlightenment as default desktop; now it uses an Enlightenment fork named Moksha desktop. This Linux desktop environment project is currently transitioning from X11 to Wayland and plans to completelty more to Wayland eventually.
Do you see that as good for us ?
JF