I really don't understand any of the Mahrez comparisons. Yamal is the antithesis of any version of Mahrez, who was a head down, mostly selfish dribbler who made a flash decision at the end of a play.
Yamal constantly scans the pitch and frames where everyone is and what to do in accordance with that. He constantly, effortlessly makes the early play and chooses the correct option at the right time, and further, Yamal doesn't need to make a single take on to play a devastating role in the team.
Even as a matured player, Mahrez's greed and decision making would often have Pep and teammates pulling their hair out. Mahrez's prime version didn't have a quarter of the teamwork and pitch IQ that we've seen this boy display.
Dribbling style and play, they don't move the same; they even have the same gait or feinting style. Yamal has displayed numerous dribbling styles; Mahrez had one refined style.
I say all the above as someone who liked watching Mahrez play. Yamal doesn't evoke any recall of Mahrez to me, and I am perplexed by the comparison.