It's a good thing that Mbappe is been signed by Real Madrid for five contracts but my area of concentration is where would Ancelotti choose to play Mbappe fully as his wing since Ancelotti likes playing 4-4-2 or 4-3-1-2 formation for Real matches. Let's not forget that there are quality players like Rodrigo, Vinicius, and Bellingham occupying such playing formations at the frontline.
I think that by next season, Ancelotti will introduce another tactical formation of 4-3-3, to bring Mbappe in, in every Real Madrid match of Laliga or Champions League, to avoid issues or confusion that will arise based on how to feature Real Madrid frontline players
If you study Haaland, he has a similar characteristic with Mbape and that's the speed, such people are good at wing but skills wide Mbape is better than Haaland by far and that is going to make him a good striker of only Anceloti is going to use that strategy. Mbape is not only fast, he is strong and doesn't fall often and I read somewhere he stated he is not worried any where, he is going to accept any place that is given to him, he will deliver.
I think the fact that Anceloti and Perez never gave up on his transfer to Real Madrid, they already had sorted out even before for demand, it will be stupid to sign a player when they don't have his purpose at the moment. Come to think of it, Ronaldo his idol started as winger but was later converted to striker and today he is one of the best Real Madrid ever produced, even Mbape wouldn't be a problem, let's wait when the season resume.
In as much as I won't dispute the fact that Kylian Mbappe and Erling Haaland have so many similarities on their footballing abilities, I would also want to point out to the fact that the Frenchman is a more complete striker that the Norwegian. While Mbappe doesn't almost everything Erling Haaland is known for, Haaland in the other side doesn't have some of the attributes of Kylian Mbappe of which ball control is one of the most obvious of them all. Mbappe knows how to dribble past the defenders, fall back to help the defense and even create scoring chances for his teammates more than Erling Haaland can ever do
The arrival of Kylian Mbappe to the Real Madrid squad is going significantly boost the performance of the team and make them more formidable than they've ever been. It is believed that Kylian Mbappe and Erling Haaland are the next two big players that'll be fighting for the Balon D'or in seasons to come but I expect Mbappe to win it more than Haaland because he's a more complete forward player than his Manchester City counterpart