Musings on different amounts of effort in GMing RPGs

[Satinavian]

I don't want to put words in anyone's mouth, but I assumed it was because setting work can be done in almost any system. You could use a prewritten setting guide, or homebrew a world with millions of inhabitants, regardless of if you're playing GURPS or 5E, or Fate.

But then you have games like SR or The One Ring which basically assume that you use a particular official setting, which is basically the opposite from GURPS which wants to be setting agnostic and universal.