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Painting the Medium reads "Please note: This trope is not 'Character interacts with the pages of the book/panels of the comic/film camera/suitable alternative for their story'—that trope is Medium Awareness" in the last paragraph of the description.
So Medium Awareness it is.
Breaking the Fourth Wall by Interacting with The Medium Print Comic
Do we have a trope that covers Breaking the Fourth Wall instances of characters in illustrated works interacting with the paper of the page they're drawn/ printed on? Like tearing off a corner, or crawling through a hole in the paper to reach the next page. Frame Break doesn't quite cover what I'm looking for, and Medium Awareness seems too broad.
(Specifically: I've encountered an example of an illuminated manuscript from the 15th century where an illustrator drew the front half of a small dog on page 469, and the back half of the dog on page 470. The dog is drawn as if it's crawling through a tear in the paper.)