Change default of update styles to false, update copy

[six7]

This PR changes behavior of Update styles to be false by default, as per internal feedback.

Also changes the copy to be a bit easier to understand what's happening when this setting is on.

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Latest commit: 41e5d3a

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[github-actions]

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[github-actions]

Commit SHA:5b9274330e40ff93cf38b24398cd77678dfc1a6e
No changes to code coverage between the base branch and the head branch