It seems to me PSG players bored to always win the competition. So they think even playing without motivation could still give them League one trophy. What a pathetic league.
I assume rumours about Qatari owners willing to leave the team might affected them. PSG used to win the league regardless of their performance because the other teams are always failing, but interestingly in the last two rounds, PSG got 2 draws while Marseille, just behind them, won two. Of course, Monaco is one of the team that I said previously that they were failing and they did miss 3 points a game before, otherwise they would be even closer to PSG.
I doubt that PSG will be abandoned by those Qatari owners. Sports washing is one of the most important activities those people use to deflect from other things they do and in relative terms, it doesn't cost them that much money. It's not big money for them, but it does contribute a great deal as to how they are perceived in public when they play in UEFA competitions and while Ligue 1 is not the best league for sure, the French national team definitely is among the best teams in the world and owning a French club like PSG still has value.
But right now they don't have a player like Mbappe, who was really able to draw a ton of attention to PSG. At the same time it is a waste of time for players like him if they want to achieve the greatest possible success besides the money they are making. If it wasn't for the money, I doubt that Mbappe would have stayed for so long in Ligue 1.
To come up with an amount, I guess that the football club costs the Qataris like $500 million a year and if they were to one day leave the club, they could still sell it. Hard to tell what the club's value is, but I think Chelsea was worth like $4 billion or so when Abramowitch had to sell it. I don't know if PSG can be compared to Chelsea.