3 points
Mint is Ubuntu, minus controversial Canonical stuff, plus an extra layer of polish and a very nice DE that is Windows-like out of the box.
1 point
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Controversial stuff and polish are fundamentally changes that make it that much harder to Google an error message and look at step by step fixes which is what most end users will need.
All mint adds for people who won’t bother to learn the differences (most people) is confusion