Ligue 1 has mostly never been a problem to PSG ever since they started dominating the league, they have their strength both financially and with the quality of their team and this has further continued to keep their morale, but this does. Not fo beyond the Ligue 1, even with the champions league they won, I still do not want to see them as been unstoppable or too formidable for other teams out there, untill they are able to replicate a fragment of Madrid's results at the champions league, for me they are not solid enough in the champions league but still tops in their Ligue 1.
Unstoppable for PSG winning or dominance at Ligue 1 in last several season only season 2020/21 after Lille success becoming the winner, since season 2014 until right now PSG losses twice season only from AS Monaco at season 2016/17 and season 2020/21 from Lille. Almost ten years season easily for PSG dominating at Ligue 1 without get difficult opponent team can stoppable for winning domestic league and PSG won behind many points left from the second standings team.
For this season winner? no doubt PSG must be favorable team after winning Champion League and have confidence easily for winning Ligue 1 without get difficult opponent team, maybe Monaco or the promotion team Paris FC should be little difficult opponent for PSG.