At least it does affect Mbappe but I don't see it from that point of view but indeed Real Madrid is one of the best teams in the world right now so Mbappe joining Real Madrid makes the possibility for Mbappe's career development in the future even greater. In terms of quality, Mbappe is also quite good so for Mbappe's performance with Real Madrid there is no doubt that he will be able to contribute greatly and show his best performance and regarding the current criticism, I think it's natural because Mbappe has just joined the team and still needs time to adapt.
It seems that Mbappe has not fully adapted to the team so the skills he has are not fully visible. Mbappe will be a great player at Real Madrid and will achieve an individual career when playing consistently and I think it's only a matter of time because he was already a great player before joining Real Madrid. Criticism for star players will always be there and that's normal because he plays in a team that is much bigger than before. I'm sure Mbappe will achieve his best career at Real Madrid because there is a lot of potential that he can utilize with his teammates to help each other.