In other cases where the club has full rights but in Mbappe's case it is completely different Mbappe's behavior seems like the club is responsible to him and not to the club. Maybe he will join Real Madrid as a free agent member as planned by Real Madrid. PSG may not be able to block Mbappe from changing clubs as a free agent.
Yes, I am reading this. Maybe this will happen soon. I think there will always be drama for the great players who will move on. So we can only wait. But indeed the most widely circulated rumors are Real Madrid. Although I read in the local media there will be many Madrid players who may not like his arrival. Maybe Vinicius, Ibrahim Diaz, Rodrygo because their positions could possibly be taken by Mbappe. Even until now there has been no real agreement with Real Madrid.
Source:
https://www.goal.com/en/news/explained-psg-kylian-mbappe-japan-pre-season-tour-squad/blt3a293b7d9379262d