What do you do when you update the release point? You don’t suddenly discover that alsa is a thing of the past and half of the system migrated to pulse now? That a distro package for light http or socks or some other niche is discontinued and now you have to migrate to another software? And you can’t approach those one at a time, as in a new installation or rolling release, either you migrate or you don’t?
Those were my observations
What about Manjaro with XFCE? That would have graphical package manager/settings/etc out of the box without being very heavy