As of today, I’ve been using the same Arch Linux installation for ten years on my main computer. I don’t have much to say, but I’m writing this because my experience doesn’t match the common notion that Arch Linux is unstable.1
I installed Arch Linux in August 20122 on a ThinkPad X121e and never saw a need to reinstall. In 2018, I switched to a ThinkPad X220 by moving my SSD. A few months ago, I copied my complete installation to a ThinkPad X13 Gen 2 using rsync. The longest I went without a system upgrade is nine months, but typically I upgrade about once per month.
Now it isn’t the case that nothing ever broke. Most disruptively, X did twice and audio did once. But over ten years, this doesn’t compare too poorly to other operating systems. With Ubuntu, I would’ve had to upgrade to a new release at least three times during the same period to end up with a version that’s currently supported,3 and five times to end up with the latest LTS release.4 And these release upgrades don’t always go smoothly either.
I don’t know what you’re using, but I bet you’ve also spent some time fixing problems with it over the last ten years.