Endeavour is fairly easy to run and maintain, aside from not having a GUI package manager installed by default (I say this as someone who has been running it for about 2 years now, and still considers themselves a Linux noob)
One underrated feature is the Welcome tab, which also notifies you if there's some critical error in the latest update so that you know to use caution and take certain steps when updating
Other than that, running yay or sudo pacman -Syu is most of the maintenance you'll need to do