Long story long: It’s not strictly necessary to read 14 first. It is a stand alone book. But it just functions much better as a sequel. I heard that from everybody, and everybody was right. I stopped reading The Fold to pick up 14, and that’s the way to do it. Just be aware that 14 is more of a slow burn, while the Fold is tight and focused. 14 is a TV show, while The Fold is a movie.
And now you’ve read like 100 words of this garbage when you could be reading 100 words of the actual books. You’re wasting time. Go buy them, if only so he has the financial incentive to write more books in that universe. I’m a selfish, selfish man.