I believe the sooner Mbappe joins Real Madrid, the quicker his success will come. Because Messi and Ronaldo are outside of Europe, Mbappe now has a big chance to win the Ballon d'Or. Because if a player of Mbappe's caliber had some support from the team, he would already have a Ballon d'Or next to his name. Mbappe should join Real Madrid this season instead of waiting for next season if there are not too many problems. Because if Mbappe joins Real Madrid, he will get a great support from the team which will help him a lot to win the Ballon d'Or in the future.
Kylian Mbappe at PSG had to harbor his desire to win the Champions League after Paris Saint-Germain failed every season even though the club is studded with star players. Mbappe should have needed a team that has a strong history in Europe and Real Madrid would be a very suitable port for Mbappe by using the number nine left by Benzema. Moreover, Real Madrid is now building a stronger team. Of course, his desire to be able to win the Ballon d'Or is very strong with no more Lionel Messi and Ronaldo Era. Next season's Ballon d'Or competition will be Mbappe and Halaand.
It seems that Lionel Messi's departure also affected Mbappe's mind so he didn't want to extend his contract with PSG. If Mbappe stays at PSG, then it is certain that Mbappe will not be able to win the UCL. Mbappe will also not develop and cannot compete with young players like Halland, Alvares, Pedri, Vinicius and Belingham etc.