It's true that Mbappe is a very important player for PSG, and I think that if he went to Real this summer, PSG's attack would be very weak now, and when Mbappe are on the field, it seems that the team is playing better. Lyon started this season terribly, and by the way, Lance also surprised me very much, for the 4 rounds 1 point and 10 goals conceded.
With this win, PSG slowly but surely returns to the top position. They are only two points behind AS Monaco, who have started this season better than PSG. If Mbappe stays at this Parisian club until the end of this season, there is a great chance for PSG to win the Ligue 1 championship again.
Kylian Mbappe will always be a key player at PSG to be able to make this club get a trophy every season, especially this season where they will try again getting the best results in the Champions League is because that is PSG's main target.
International break, Mbappe will play to strengthen the French national team and will return to PSG after that to play against Nice, against Nice PSG will again try to get 3 points and it looks like it will not be a difficult match for them to win, and Mbappe will score goals again to make him continue to be the most productive striker at the club including in that league, because he has scored 5 goals in the 3 matches he has played.