The sort of structures and patterns of play we're talking about are pretty basic and self-evident aspects of football. Books have been written about it, managers openly speak about it as part of their methods, it's even a part of high level coaching courses like the UEFA A license and Pro Diploma. For example if you read
this material for the UEFA A license you can see them talking about the exact same things we are using the specific term "patterns of play".
But even without knowing that, you can actually see it in games with your own eyes. How did you think Man City repeatedly scored the same cut-back goal if patterns of play weren't a thing? Coincidence?
The fact that you seem baffled by these ideas and imagine them as some sort of mad idea people on the internet have come up with doesn't reflect particularly well on your football knowledge.
It makes me wonder what you actually understood was happening when, say, the great Barcelona and Spain teams were dominating games. You
were aware that they weren't playing all those tikki-taka patterns on instinct, right? That their positions and passing patterns had been pre-drilled? If so I don't know why you're so baffled by the idea that other teams do it too, or that it's widely known information.