May be a mean sounding question, but I’m genuinely wondering why people would choose Arch/Endevour/whatever (NOT on steam hardware) over another all-in-one distro related to Fedora or Ubuntu. Is it shown that there are significant performance benefits to installing daemons and utilities à la carte? Is there something else I’m missing? Is it because arch users are enthusiasts that enjoy trying to optimize their system?


Because it is less trouble.
I read comments here all the time. People say Linux does not work with the Wifi on their Macs. Works with mine I say. Wayland does not work and lacks this feature or this and this. What software versions are you using I wonder, it has been fixed for me for ages.
Or how about missing software. Am I downloading tarballs to compile myself? No. Am I finding some random PPA? No. Is that PPA conflicting with a PPA I installed last year? No. Am I fighting the sandboxing on Flatpak? No. M I install everything on my system through the package manager.
Am I trying to do development and discovering that I need newer libraries than my distro ships? No. Am I installing newer software and breaking my package manager? No.
Is my system an unstable house of cards because of all the ways I have had to work around the limitations of my distro? No.
When I read about new software with new features, am I trying it out on my system in a couple days. Yes.
After using Arch, everything else just seems so complicated, limited, and frankly unstable.
I have no idea why people think it is harder. To install maybe. If that is your issue, use EndeavourOS.
Everything I wanted to say in a single comment.
It really just werks™
yay! Everything is up to date and working better than ever. Manjaro and Endeavour seem okay, too. Sounds like SteamOS 3 will be Arch-based, which would be great news!
Oh, also, AUR is life. And worth mentioning, KDE Wayland, NVidia 3090, Pipewire, and UKI generation. 👌
SteamOS already is Arch based.
Wayland is a great example.
Debian user? You may have spent the last two years complaining that Wayland is not ready, that NVIDIA does not work, and that Wayland is too focussed on GNOME. You may move to XFCE if GNOME removes X11 support.
Arch user? Wayland is great and Plasma 6 works flawlessly. There have not been any real NVIDIA problems in a year or two. Maybe you have been enjoying COSMIC, Hyprland, or Niri.
SteamOS 3 is arch based but that doesnt mean its anything like arch. It builds from a snapshot of arch and ships that to users as an immutable. So it will be extremely out of date compared to arch.