You are right, I think we can't blame Mbappe or a single player of PSG because they didn't get good results in the Champions League. We all know Mbappe is a good player and he will do his best for the team but he can't do everything by himself surely he needs to be in a good team and we should wait to see if Enrique can give him this chance or not because currently, Mbappe is in the good form. However, there is currently a high possibility for Mbappe to leave PSG during January, and this this case PSG should rely on other players instead of him.
Mbappe is one of the best football stars in the world and one of PSG's most important players, so PSG have high expectations from him. PSG have managed to keep a very talented player so far, no matter how talented Mbappe is we tend to forget that he is one and he will never play like 10. No matter how well a player performs in a team, if the rest of the team's players do not provide good support, then the team's performance will be null. Mbappe is performing well individually for PSG but all the other players in the team are not able to support Mbappe well due to which PSG is not getting good performance as a team. Mbappé has been heavily buzzed about outside the club in the transfer window ahead and chances are the buzz will come true.
5 points ahead of the second-placed club is a difficult gap to catch up with, yes that's because Paris Saint Germain are at the top, but if another club was in that position and Paris Saint Germain were in second place I might say different things.
Now the expectation is on Nice, they have a very strong defense that is difficult to break down, but they have a deficiency in the front line that is very difficult to create goals. They must take advantage of the transfer market to get players they can rely on up front. I'm sure if they can improve their goal productivity, then they will be a real threat to Paris Saint Germain, but if they can't improve then I'm not sure they can be a contender for Paris Saint Germain, maybe even be displaced from their current position.