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.
It is natural for star players with high transfer values to want to achieve individual achievements and this can be realized if they play for a team that can provide more support for them. I'm worried that when he stays at PSG he won't be able to achieve this because talking about the league, players must be able to deliver the Champions League trophy in order to achieve individual and club achievements. For example, like Cristiano Ronaldo and Lionel Messi, they were able to achieve individual careers because of the support of the team and more mature players at the club.
If Mbappe wants to gain personal benefits then a salary cut is something that is difficult for him to accept, but if he wants to achieve a much better career then taking the opportunity to take a pay cut is not a big problem. The Ballon d'Or and the Champions League trophy are the dreams of many players and Mbappe will get that if he plays with the right club and I'm not saying that only at Real Madrid because other players have gotten it before.