It is believed that Mbappe likes to play as a left winger/striker who is under the striker (false nine, to be honest I don’t know what it’s called correctly in English). Therefore, the transition to the position of a pure striker may require special efforts from Mbappe, but in the end, a roughly similar transformation when moving to Real happened with his idol - Ronaldo, so Mbappe will be able to repeat this path.
I was also looking at how Ronaldo transformed from a winger to a perfect striker when he moved to Real Madrid and Mbappe might also want the same thing too and not play at the wing because we already have someone playing there and he has being the best player for real madrid. Mbappe playing as a striker will make him the target man and that is what he would love as he moved to a club with stars already. Everybody will be playing for him and all he has to do is to create spaces with his speed for the ball to to pass to him and he scores. He is going to be enjoying his time at Real Madrid and everything will just work to favour him. He has worked and it is his turn for his flowers to be given to him and also win some awards and important trophies.