Are these uses of em dashes extant in English-language fiction?

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Music by Eric Matyas
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Track title: Hypnotic Puzzle4

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Chapters
00:00 Are These Uses Of Em Dashes Extant In English-Language Fiction?
02:27 Accepted Answer Score 18
05:40 Answer 2 Score 6
06:51 Answer 3 Score 5
07:19 Answer 4 Score 0
08:50 Thank you

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Full question
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Tags
#punctuation #emdashes

#avk47