Data during the game. In fact, Kylian Mbappe has scored 5 goals in all the La Liga matches he has played. 2 of them were assists from teammates, while the other 3 were penalties. Kylian Mbappe struggled to score goals in the many opportunities available to him in many matches, while Vinicius, who played the role of scoring opportunities for his teammates, appeared more.
As Real Madrid's main center forward, Kylian Mbappe should be able to take advantage of more goal opportunities than other players. With this I can conclude that Mbappe failed with many of his goal opportunities, while Vinicius was superior to him.
This is why I asked whether you refer to the few games of this season or to the two players in general...
Because in general, Mbappe is far superior to Vinicius Junior with emphasis on the Champions League and I think this is what counts. I don't want to count Ligue 1 vs. La Liga as I think we agree that scoring in Ligue 1 is probably easier than in La Liga, but in the Champions League Vinicius Junior isn't even close to Mbappe's goal-per-game ratio.
But if you take all things combined, Mbappe has 295 goals and 127 assists in 384 games. Vinicius Junior has 105 goals and 88 assists in 350 games.
Do we agree that Mbappe has outcompeted him by a lot? Now we need to wait and see whether Mbappe can find his best form very soon.