I've read your comments on Mbappe and realized I hadn't thought about it this way before. I am a football fan who wants Mbappe to transfer to Real Madrid. But based on what you said, you really spoke logically that it could be a problem for Real Madrid's game. Mbappe is an individual player. His character on the football field goes a little against the team spirit at Real Madrid. If he transfers, I don't know if it can prevent this situation. But there is another situation. It is this selfishness and greed that makes Mbappe Mbappe. That's why I'm undecided whether I want this transfer to happen or not.
Haaland and Mbappe are very different characters. It is because of these characters and their games on the field that they are now among the best players in the world. I will not make a comparison. Both are players a team would want. I can only state that Mbappe is more selfish than Haaland.
I wouldn't say that Mbappe could harm Real Madrid's game or could become a problem for the team. If that was the case, tons of problems would have been there when Ronaldo played for Real Madrid as he is even worse than Mbappe. But these players are still the best regardless of their characters. It makes sense that the selfishness and greed might be a part of their very own success formula although you can see that other players don't need to be an asshole in order to be successful. I rather think that players like Mbappe could be undermining other values that a club like Real Madrid stands for, but as long as he is the best scorer nobody would blame him for his character.