It’s not so much corruption, it’s that every app uses it a little bit differently and half of them aren’t good at cleaning it up on uninstall. You can still get

It’s not so much corruption, it’s that every app uses it a little bit differently and half of them aren’t good at cleaning it up on uninstall. You can still get the system into a bad state where a rebuild (especially if you don’t have a lot of dependencies) is easier than trying to untangle whatever app or script or driver borked something.