Were you not aware of it at any point? I don’t necessarily mean as part of the GCSE curriculum. I’ve been aware of the Odyssey and the Iliad from the “Ancient Greeks” part of our primary school curriculum back in year 4. Of course we weren’t analysing texts, but I’d expect any ten year old to be capable of rattling off some major plot points like blinding Polyphemus, or sailors plugging their ears with wax against the sirens and tying Odysseus to the mast.
It’s more insidious than dead internet theory. Imagine any significant social media platform containing a large proportion of users that can be directly prompted to tout any message, or mass downvote opinions that the company doesn’t like. All this can happen while the company claims to be a “free speech platform”.