Vinicius shows that in Real Madrid, he and Mbappe will continue their internal race for a position as a most important attacking player, a most brightest star player in Bernabeu. Mbappe actually feels that in Real Madrid, he won't automatically become a brightest star player if he can not play better than Vinicius.
In quality, they are at a same page and in experience in Real Madrid and La Liga, Vinicius has more experience than Mbappe who is struggling with his striker position in a new club and also a new league. In addition, what's going on with Mbpape and his national team France, probably affects his mentality in general, then his performances for Real Madrid too.
Mbappe must immediately adjust himself to the cooperation of other Madrid players. Actually, he played well, it's just that several times he showed his selfishness in making decisions.
In La Liga, Vinicius played 12 times, and scored 8 goals and 4 assists. and Mbappe played 11 times, and scored 6 goals and 1 assist. Mbappe is Madrid's center forward, he must position himself like that. He doesn't have free movement like when he was at PSG where he often controlled the ball on the left side even though he was the sole striker on the team. In Madrid, there is Vinicius who controls that position, and Rodrygo on the right. Mbappe must position himself like Benzema when he was at Madrid. Maybe that's what Ancelotti hopes.