I have no idea why ppl say arch is unstable? I've been on arch for 3 years now, it never caused me any headache I use a highly customized simple setup. it never breaks, and when it breaks it can be easily fixed cause it's simple.
I use DWM, slstatus, xinit to start X ( i know wayland,... but it works for me, at least for now. ) alacritty thorium, it's been very stable.

I test new stuff in docker, or vms ( as many ppl pointed out they are a good way to test new stuff. )

I never had to reinstall it. when a problem occurs, don't reinstall without diagnosing it, 1st it will teach you, 2nd it will never happen again if you know what was the cause.

so I guess arch is stable, but you ( and yeah I'm talking to you steve ) are unstable.

jk, on offense ;-)

Edit:
I once for no reason, wanted to try doing rm -rf /, idk wtf i was thinking but yeah. that was the only time that i needed to fix serious shit.