You can feel all you want - there is no evidence this is happening.It would be massive news in the professional community. You’d need a comprehensive GTO strategy which doesn’t really exist, especially in multiway pots. Best we have right now are GTO (game theory optimal) solvers which need tons of assumptions plugged into them and require enormous amounts of memory and time to spit out results, and we still don’t really understand a lot about the underlying theory.
It doesn’t matter how many hands you “train” something on. Poker is a game of incomplete information and many assumptions must be made about an opponent’s range, bluff frequency, etc. One small tweak in assumptions and the entire GTO output changes with solvers. It’s very difficult to get these assumptions right. As I said it’s an unsolved game. Even the GTO solvers only work in 1 on 1 pots (assuming the assumptions you’re working with are close).
Respectfully, although you claim to be a former online professional (I have played for 20 years, at times professionally) - you don’t seem to understand what you are talking about.