But isn't the entire point of Ubuntu supposed to be that things "just work"? Most people don't go searching through settings to fix annoyances--they just get annoyed.

In my mind I was imagining a person who shows off Ubuntu would know how to do such a thing, but these days that's probably not (necessarily) true, even if it were, it still doesn't matter if the person they're showing it off to wouldn't be able to easily do it too.