Pop!_OS
Pop!_OS is an Ubuntu-based Linux distribution featuring its own GNOME-based desktop environment called COSMIC. It is designed with productivity in mind; it has fluid windows, search navigation via the Super key, workspaces that can hide clutter, and efficient auto-tiling of windows.
VS
FunOS
FunOS is an Ubuntu-based Linux distribution which features the JWM graphical user interface. The project is intended to be more lightweight than official Ubuntu community editions while providing the same application compatibility and hardware support.