I still haven't seen any official information saying Mbappé will renew his contract with PSG. If he continues to renew his contract, it means that in his youth, he will be associated with the PSG club. Staying here really didn't bring him any prestigious titles. Power and money were boring to him. Real Madrid is waiting for him, and this is a club that will help him with many things. Mbappé turned 25 but never won a Champions League title or the Golden Ball. If he wants to become a legend, he should go to Real Madrid.
I really like your very realistic thoughts and I also agree that at least it would be better for Kylian Mbappe to leave PSG to seek experience or challenges at another club to get prestigious title that you said and that would be really needed for players like Mbappe who have very reliable talent of course he wants to become a well known legend when he gets older and I think that will happen.
Because after having problems at that time, Mbappe was increasingly unable to last long at PSG, so the possibility that Mbappe will leave PSG is very positive and we will soon see a very unstable performance after losing his mainstay player and Enrique must be responsible for stabilizing PSG performance even though he lost skilled player.
PSG is a garbage club. Staying there meant mbappe will get nothing. Real madrid would be able to change someone to be even better and look at bellingham. That guy was still 20 years but his performance is even more impressive compared with mbappe.
PSG will never change the player to be even better than before. Mbappe will be nothing there.