To throw some examples from my saves the AI certainly focus more on playing/buying youth players compared to FM22/FM23.
Guler becoming a first-team player for Madrid, Liverpool going all in on very young Yamal was cool to see, PSG playing Xavi Simons & Zaïre-Emery consistently, international teams calling up younger players (Kobbie Mainoo & Archie Gray for England is an example I've spotted)
Overall we're happy with the improvements made for FM24, it is a system that can be improved and if you see examples please raise them to us.