Those who really want to get into the weeds of what can be learned from AlphaZero and contemporary chess engines in general should check out Matthew Sadler’s books Game Changer: AlphaZero’s Groundbreaking Chess Strategies and the Promise of AI (co-authored with Natasha Regan) and his newer, perhaps more directly practical work The Silicon Road to Chess Improvement: Chess Engine Training Methods, Opening Strategies & Middlegame Techniques. (One should not learn from him how to write a short title.) But you might also have a look at this paper, and economist and retired (from chess) FM Tyler Cowen’s reflections on the paper.

If you’ve come across other tidbits over the years, whether from grandmaster commentary or your own experience, please share them in the comments.