Yes, but the size matters. And the prevalence and reach those top tier info sharers have. Now it's not even a question of whether or not you run into people playing with that knowledge. It's assured in every competitive game in nearly every match.
A personal example would be halo 2 jump tech. A friend of mine showed me a few videos on 2005 YouTube showcasing cool jumps on lockout and a few other maps (not super bouncing, different things).
I was able to leverage that for like the entire life of halo 2 online with people rarely ever understanding what I was doing.
Today everyone everywhere would know that because the biggest halo streamers would make it so common.
For fun you can search up Delta P to get to industrial horrors beyond comprehension