Who and why would anyone pitch the original “fake” news story story?
Looking at the story, there are three possibilities.
One, the Sun made it all up, including the quotes, to generate clicks. Absolutely could be true!
Two, it was planted by a PR firm to drum up interest about the GQ awards. There’s not a great deal of information about the awards themselves though, - it does say that getting their top award is a “coup” but that’s pretty much it. You’d expect the awards to be bigged up a lot if it’s PR from them.
Three it was planted by a PR firm to enhance the reputation of Meghan. Given the quotes mention that she’s been offered a “top” award, which is a “coup”, that she already knows Edward Enninful (who is highly thought of) and he’s a “friend” not just a business contact, and she’s so important that they were prepared to shift the whole awards ceremony so she could attend - it’s quite clear who’s being bigged up here. So if it’s PR, it’s most likely come from Meghan.