Yes, Real Madrid is a club that has a great history and has won quite a lot of titles so that they are always respected by their opponents. Real Madrid is used to high level players. Mbappe's arrival certainly increases his strength, but he must be able to play collectively with other players so that Madrid's target of retaining the title is achieved. I am sure Ancelotti will treat Madrid players equally and not differently from one another. The honor of the club is more important than having to treat one player like a king.
All I have seen so far with Madrid is such that mbappe will need to unlearn and relearn certain things especially when it has to do with cooperative playing such that it will be more of team work because at this point they may not be really depending on him soely like it has been most often at PSG a d so he enjoyed the Monopoly of decision such that it doesn't really matter if he gets to involve others but in Madrid he will have to learn how to inculcate that especially the attitude of a team spirit so the whole burden doesn't get to rest alone on a single person making it looking like there's a team dependence on him again.
No preference Wil be giving like he does received at PSG where he was a super star, he's still a star but in a team where stars shine brighter but I under the jurisdiction of their coach. Mbappe will definitely cope with all this probably before the main season begins because they are going to train together before the where all of this will be made known to him for necessary adjustments especially when the need to arises. It will be a good season for Madrid because they have got a Plus to their strength there by reducing the stress on certain players who have been shouldering the burned since before now.