Comment by BoorishBears

There's a search bar in the System Settings app, you don't need to know what Spotlight is.

I'm staying with family and just handed my 64 year old mother who has never used a Mac my Macbook Pro with the settings app open, and after explaining the concept of default browser in non-leading language (not mentioning the word default), her first thought was to click Display.

When nothing familiar was there her next thought was to click Search and then type in Browser and she made the connection of "Default Browser" to the concept I mentioned immediately.

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Non-techies are not going to learn the groupings for OS settings any easier than they'll figure out a UX pattern that's been widely accepted for decades: https://www.nngroup.com/articles/search-visible-and-simple/

Of course, who don't know anything about UX tend to assume personal anecdotes map to a much larger sample size than they actually do.