For La Liga, it might not be too difficult, but Mbappe will be quite tested when playing in the Champions League. If his presence does not make Real Madrid's strength more solid, it will be very dangerous for his career. He had to overcome the competition between his teammates and become one of the players who contributed greatly to Real Madrid.
This condition should not make us worried. I feel confident that Mbappe will be another option for Ancelotti to get variety in the game. Indeed, Mbappe's position is the same as Vini's, but I feel confident that Ancelotti is able to play them together in different positions. Because Mbappe is certainly able to play well not only in 1 position. Maybe he can be a central striker, or a main striker. Maybe he can be like Ronaldo. Being the main striker and opening up a lot of space to attract defensive players.