Real Madrid is a great team and is true that they are having a golden standard of new players yet for me they cannot win the Champions League without a leader like in the times of Raul,Mijatovic,Cristiano or Benzema.Bellingham is a great player but he is like Gareth Bale which was not a leader although he was a great player and contributed a lot to Real Madrid,yet without any true leader they will have difficulties to win the Champions.I think Mbappe would be the ideal player to lead them in winning European trophies again.
Mbappe is not a player who typically has a leadership spirit, and he is still very young, I think he is still not worthy to lead Real Madrid's troops in the title race.
In fact, Real Madrid is a top team and they are nicknamed the kings of the Champions League and a team like Real Madrid has a high enough mentality so this is beneficial for them when they are in critical situations or high-tension matches.
And for Mbappe, it seems he is the one who needs the Real Madrid team to win the title and improve his performance and individual achievements.