I'm studying up from a lot of what the boom brought out. It became a game of solvers and pure math for many of them, also online made it possible to rack up a lot of hands combined with HUD's for reads. The materials I see mostly point out to playing x hands this way pre-flop because over 10 000 hands it's +ev, or making this re-reaise or bluff here for the same reason. Tournaments get trickier as they talk about all the moving pieces as the levels progress and stack sizes change, not to mention Itm pressure. When it comes to cash they say it's more straight forwards and it's about getting stacks in when the numbers say you are +ev. They don't deny that there are still moments where you can exploit a player, but that overall you should have a range and play it the same way each time thinking of the long term.
This is very true and probably the reason I never looked any deeper into turning into a poker pro. Grinding online as a poker pro is a very robotic way of making your money and the fun element is taken out of the game to a good amount. It's different for live poker then again.
I always had the idea of some algorithm for cycling/winter sports, that I just feed with data and maybe some additional information (athlete doesn't like altitude or whatever) and that algorithm then throwing out the bets for the day and I come back in the evening to see how it unfolded and collect my money. But this is boring to me in the end. I am doing this because it really gives me joy and happens to bring me some money too.