Does online coaching work for live games?

So as a live player I have always wondered does signing up for online courses really work? When I sit in a live cash game or tournament 50% of my game is based on creating a player profile for each player. Then watching how active they are, how they conduct themselves, bet sizing, how they take a losing hand, and general body language and physical tells. You cannot learn this from online courses? but rather you need to play enough live hands and observe? What % of live play do you associate with the above versus GTO and general math. Watching "Inside the mind of a Pro" on YouTube it is all about how each pro plays against each player rather than GTO. Your thoughts?

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I agree. For me, the best learning has come from playing live and then reviewing the hands afterward. Live poker plays so differently from online that, for me, nothing really compares. The lack of tools designed for live cash players, ones that can account for things like multiway pots, straddles, table dynamics, and the other realities of live play, was so frustrating that I eventually ended up building a tool I genuinely needed to evaluate whether my decisions were correct. GTO solvers and the other tools just didn’t really work for live cash play. And AI kept hallucinating draws and pot odds that were not legally possible on the board, and got equity calculation wrong each time. All that labor has now became HeroCallPoker.com as I try to evaluate if it has value for other live cash players. You are welcome to check it out - it's free now in beta, and I would appreciate any feedback. Here’s what my poker journey has been. (https://twoplustwo.com/post?postId=59405545#post59405545)