I think that once one goes into software development professionally, mucking about with Linux configuration stops being something one does as a fun learning hobby and becomes something one does for work and hence can't be arsed to also do at home during one's free time.

Certainly that's how it goes for me: all I want from my Linux machine at home is that it delivers the least hindrance possible to my web-browsing, gaming, 3D printing and so on, whilst still protecting my privacy and letting me to a little bit of playing around with its more powerful features but only when I feel like it, not as a requirement to use it.

The same also applies to other techie stuff, by the way: I'm no early adopted of latest and greatest because I don't want to be somebody's beta tester, since I have enough hassle already testing and fixing my own code (were I can actually deploy good practices to reduce the amounts of bugs and hence frustration, unlike the vast amounts of amateur-hour crap out there being shipped as final products that are just beta tests that never end).

/RANT