I would say EndeavourOS is the "Ubuntu" to "Arch" if you will. The installer is easy, and it comes with "yay" out of the box which is a frontend to Pacman which holds your hand in just the right ways. If I want to update my OS I type "yay" into a terminal, hit enter and confirm the packages needing updating (or select which ones I want) and type my password, and that's it. In the past with Manjaro I did a system update with Pacman, and problems ensued.