What you say is true, there is a big gap that has occurred between them and other teams in ligue 1 so far, and that it making easier for PSG on dominate the league every season, after winning many ligue 1 trophies so far of course they no longer seem to have great ambitions to win the domestic league trophies, because we cannot deny that the UCL trophy has been priority and alsoa their main target so far, The match against Liverpool will be biggest challenge for their this season, although both teams have the status of big teams and have good squad quality but the mentality that Liverpool have is much better than PSG in the UCL, this season is Enrique last season in coaching and I think he has great ambitions to become the first coach to give the first UCL trophy in PSG history later.
It is known that PSG is the absolute leader of Ligue 1, Marseille tends to compete with a higher level, but they have not been able to reach them, it is a shame, I think that has caused some boredom in Ligue 1, on the other hand, until now things with Liverpool have been impeccable, the confrontation with PSG in the UCL will be very interesting, Luis Enrique, like the new PSG that he is managing, is growing, if Liverpool does not grow too, they can lose, many unpleasant things can happen, I think Liverpool has to go all out.
It can almost be said that Ligue 1 has become the property of Paris Saint Germain, I even thought whether they are still interested in getting the title here or not, because any weakness does not look like a weakness when they are in Ligue 1, unlike when they are in the Champions League. No matter how small the weakness they have, it is very visible and can be used by opponents to defeat them, while in Ligue 1 they cannot do that.
It is undeniable that when they look weaker in the Champions League it is because they are too comfortable in Ligue 1.