Watch some of Zidane's highlights and he also didn't really have the killer pass or shoot in him either (compare to other top attacking 10).Yes, people were writing that he was better in an advanced or number 10 role. For me he has always been a deeper lying player. I don't think he has the killer edge or shooting to play in a more advanced role, though admittedly his ability in tight spaces can be an advantage closer to goal, near the D etc.
I do believe he is better deeper though, pulling the strings and controlling the game. It seems the forum is a little split on this but to me that is definitely the player he has always been,
Pedri can refer to Zidane's style of play if he continues to play as a 10 (very likely). Though Pedri does not have Zidane's physicality/body balance. Zidane liked to held on the ball/dribble, not only thanks to his technique but also his body strength that made it hard to push him off the ball.
Pedri also doesn't have the agility/quick acceleration, burst of Iniesta or Neymar.
He will always have this disadvantage when he plays in an advanced role.