Comment by coldpie

If you go from using Linux for years to having to use an OS like macOS or especially Windows, it really does feel like using a computer with padded walls and safety scissors so you don't hurt yourself. You do get used to the limitations eventually, but for technical users it's a pretty noticeable step down in terms of how you may use and configure your own system. Calling them "not real operating systems" is definitely a little cheeky, but it resonates, and isn't out of character for a blog post about configuring your browser with JSON overrides.