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.