I went through some hell when I ran Gentoo unstable(~) but for the past several years I've been on Gentoo stable and have very few issues. I've even used it on work laptops at three different companies.
It is definitely more of a do-it-yourself distro than Arch for sure, but I enjoy working with it.
That never seemed acceptable to me and I ended up moving over to Arch Linux for a good 10+ years before the instability of it finally got to me and I moved to Ubuntu.
Having said all of that, I'm glad to hear that Gentoo is stable for you. I really enjoyed my time with Gentoo and I got the feeling that after he left there were mistakes made in terms of everything working reasonably.
Your description of Arch reminds me of an experience I had with linode and arch years back. Due to an internal hardware issue, they basically lost my server. When I went to recreate, I discovered that you couldn't just update the world because it would immediately result in a broken system. You instead had to reconfigure a few things before updating the world.
I no longer use Linode.
At some point the vendor has to take responsibility. That's a large part of why I like Ubuntu, they do. It works every day without me having to worry about it.
I actually appreciate that Gentoo is set up to allow me to run that command if I want to.
But I did move off of Gentoo due to constant dependency conflicts. They took forever to deal with and they were pretty well guaranteed to happen whenever you didn't hold to a strict and frequent update schedule.