One thing I don't know about any Arch based distributions is how about configurations. On Arch, the default configurations for some packages, whether do not work out of the box, or are not the safest configs. Whether while installing new SW, or while updating, there's a good level of involvement particularly with configurations.

Apart from installation, which in rolling release distributions it might be about a one time thing per device, configuration might become a burden for new users.

I believe Manjaro (I've never used it) comes with some sort of sane configs that work out of the box for most users, unless when looking for particular tweaks, or so I read in the past. But Manjaro has fallen really down on people's preferences. If EndeavourOS uses Arch repos, I'm wondering if there's any difference, once installed, between maintaining Arch and maintaining EndeavourOS. Just by how it sounds, it's the same thing, a lot of wikies readings (particularly when not familiar with the SW and how to make it work, there's SW that works without particular configs, but there are some that don't really work nicely out of the box on Arch), having to config lots of things to install stuff and make it work, and then be careful on upgrades about configs changes. It doesn't look like EndeavourOS makes this any simpler, and just having some extra stuff, but not having their own repos, where they package SW with curated configs, then I see no purpose other than to make the Arch install easier, which now a days have alternative ways to do so.

Can some one please clarify on configs, and maintenance in general, for EndeavourOS? Is there an Arch based distribution really making this easier on new gnu+linux users, who are are really not used to deal with any of that? TBH, depending on Arch packages repositories sounds hard to achieve any of that...