I have grown up on Windows and repairing Windows was usually like "not sure why it happens, let's try this set of various utilities hoping that one of them will

I have grown up on Windows and repairing Windows was usually like "not sure why it happens, let's try this set of various utilities hoping that one of them will fix it, if neither does then let's reinstall on top of existing filesystem, if it still doesn't help let's make a clean reinstall". On GNU/Linux though I have yet to find an issue I'm not able to get to the bottom of and at least understand why it happens (well enough to file a useful bug report) since I started using it in 2006. I have never reinstalled a GNU/Linux distro because of a software problem, and I've been breaking them quite a lot with my tinkering.