Mbappé and Vinicius are naturally two star players. Of course, before Mbappé's arrival, Vinicius Junior was one of the team's most influential players. Now, with Mbappé's arrival, he may feel relegated to the background. This may have created a natural rivalry between them. This is actually a good thing, in a way, because it creates competition for the jersey. It also motivates them to showcase their individual talents during matches. However, on the downside, they often focus on scoring goals rather than passing because they want to show off who the star of the team is. This is a negative image for Real Madrid. Real Madrid is my biggest contender for the Spanish title this year because they've made better signings than Barcelona and have significantly strengthened their squad regionally.

That's what must be done, but it's not easy to unite star players in a team like Real Madrid's current one, which boasts numerous star players who naturally have enormous egos. It's the coach's role to foster chemistry and manage their egos.

Vinicius and Mbappé are often rumored to have a rift due to their egos, but I don't think so.

They are players who must score goals, and with the few chances they get, they must make the final touches to ensure the team wins. However, sometimes they play too selfishly in their finishing. They need to be better at calculating the best chances, whether to finish or provide an assist for a teammate to score.
But sometimes they also play well as a team. It is the coach's job to maintain the consistency of his players' performance. They will soon face tough competition.