Strangely enough: Windows. Yes, I fucking hate Windows 10/11 for several laundry lists' worth of reasons, but you know what? At the end of the day, Windows is the only desktop OS that enables me to use my computer to do the shit I need or want to do. So long as that fundamental principle as a tool is not violated, I will forever be thankful for Windows regardless what criticism I might have for it.
Windows is a very good operating system. Windows haters don't hate for technical reasons, but for religious or political reasons. And I like Microsoft. Microsoft makes some products, that's it. Not experiences, or promises of freedom. They are software products, with problems, qualities, end.
If you've never felt this pain then be glad you've missed out on the multi-decade cross-platform low level programming nightmare. Modern stacks abstract all this away, and the youngins don't know what all the fuss was about.