Is Mbappe too ambitious? Not necessarily.
Mbappe is used to receiving a high salary at PSG, and it's understandable that he might expect a similar sum from Madrid. However, it's important for Madrid to offer what they can afford, without repeating PSG's mistake of offering excessive salaries.
If Mbappe prioritizes money, he may be better off staying at PSG. But if he seeks recognition, then Real Madrid would welcome him.
Negotiations between Real Madrid and Mbappe are natural, and I believe this deal will likely happen at the end of the season.
I think Mbappe is now motivated by trophies and personal glory. He would have won the Ballon d'Or if he was in Real Madrid and he knows that. He should also be driven by the desire to win the Champions League. There are greater tendencies that Real would lift the UCL than Paris Saint-Germain F.C. The French superstar desires the glamour and glory that football brings to a player apart from money. I think he should consider taking a pay cut to play in Real Madrid because they have the right players that will make Mbappe shine.
I think he may not be able to earn the same salary in Spain as he does in France. I think he should get used to this and accept Real Madrid's offer because Kylian Mbappe is a player who focuses on global success. If he is going to achieve global success, I think this may be possible in Real, but this possibility is very difficult in PSG. I remember how sad he was when they didn't win the world cup. He wants to be the best in the world now.