I haven't touched any of those tools in a decade or more. I just haven't needed to? The Linux desktop is so much less demanding than it was through the 90s and early 2000s. You don't need to know about any of that stuff to make it work, to customize things, set your favorite key settings (e.g. making Caps Lock useful), to have reasonable hotkeys, etc.

I would argue that not having to use those tools to have a happy working environment makes it further advanced, rather than behind.