My example sentence uses it metaphorically in the context of a repeated narrative. Pretty much all we heard in 2020 in the UK were the words I listed. That's why I put them together and called them a soundtrack.
For all I know, it might have been used in "a literature book" (whatever that is). I'm simply saying that we can't tell you whether it has been or it hasn't been. You will have to do your own research.
If you find a literature professor who's prepared to do that, let us know what you find out.
Note that we don't use "should've" as a contraction of "should have" when the main verb is "have". It can be shortened in things like "You should've done that" ("done" is the main verb").