PSG is still the strongest team in France, no doubt about it. However, teams like Marseille, Monaco, Lens can push them. They managed to beat Lens last week. However, they had never won before that. If Marseille is lucky this year, it is of course possible for them to become champions. PSG is still not fully compatible.
At the beginning of this season, PSG was indeed in doubt after an incident of quarrel between Mbappe and the owner of PSG where Mbappe was not included in PSG first game at the beginning of this season. But that has passed and PSG has made peace with Mbappe which gives it an important meaning that their balance of power is very stable to advance in a winning trend in the upcoming matches.
For now Monaco and Marseille are at the top of the table but I still doubt them because their level of concentration to maintain a winning streak will be difficult for them to do. But at least we see big changes in the standings and hope this season's competition is no longer boring like the previous season.