My experience, ymmv, the most work went into configuring everything you need or want the first time. The right drivers for your graphics card, for your webcam, wifi, acpi multimedia keys, etc. Though I don’t use a gnome/kde/DE, so some of that may automagically work for you. After that though, updates don’t tend to break the things you’ve already fixed.

One time in 5 years the names of some acpi keys changed, and I had to update the script, and that wasn’t really arch’s fault. Also Google did a funny thing with their monospaced font that xft couldn’t handle, again not an arch specific thing.

And here’s a hot take for you, I only update about every 18 months. That’s usually how long it takes Discord to become binarily incompatible with installed libraries. Update the keyring first and never a problem.

Maybe this goes a bit deeper than the question intended, but I’ve made and shared two patches that I had to apply locally for years before they were merged into the base packages.

The first was a patch in 2015 for SDL2 to prevent the Sixaxis and other misbehaving controllers to not use uninitialized axes and overwrite initialized ones. Merged in 2018.

The second was a patch in the spring of 2021 for Xft to not assume all the glyphs in a monospaced font to be the same size. Some fonts have ligatures which are glyphs that represent multiple characters together, so they’re actually some multiple of the base glyph size. Merged in the fall of 2022.