Wait... Is his move to Real Madrid confirmed? A quick search says it’s all talks and hear say as of now and that some players find the wage deal kind of ridiculous. I think it’s the football journos trying to get a better meal than quick cook ramen guys. Lol.
And you’re right. It def doesn’t mean cups right off the bat. Everybody should remember the last two high profile signings of Bale and Hazard. It could be a curse for Mbappe.
I don't know because his time in PSG does not look really awesome at the moment. I know that we all said that Bale and Hazard are going to be the next Messi and Ronaldo but eventually Messi and Ronaldo are outlasting them.
But in this case, I don't think him moving to Real Madrid is going to be a bad decision. If anything I think that it is going to do you better for him in the long run.