I wouldn't go as far as calling Arch the antithesis of easy (tho you are right that it's like a toddler you have to constantly babysit. Don't like that part, but I wanna say that's most rolling releases, no? Plus I haven't found a stable release that i jive with either, so nothing left but to tolerate it), but then again, that varies from person to person. After all, I struggled much more with Pop_Os! (in general) and Fedora (more growing pains than anything) than I ever did with Arch, and I'm an idiot when it comes to computers--pretty good at looking up answers to problems tho lol

Issues are pretty mixed IMO. There are ones beyond our control like the GRUB one and the backlight one, can't really do much about them (but I'm not gonna pretend it's only an Arch thing. Every distro messes up once in a while) except sit tight until there's a fix...or well, you could try and fix it yourself, but then we lead to the other thing, in my expierence, anyways: 90% of issues happen because the user messed with something. Not even something obvious, i mean mucking about within the systems guts for one reason or another without knowing what you're doing. I've since adopted a golden rule: you don't bother the PC, it doesn't bother you. Personally, haven't had problems besides the backlight one, and even that was fixed quickly.

Regarding Tumbleweed and Fedora, they're good options, but installing nvidea drivers isn't super straightforward. Would have still recommended Fedora, or even better, Mint if they hadn't said they were looking for a Rolling Release, actually. Nobora should be easier, or so I've heard. Never actually tried it myself.