When PSG performed poorly in the Champions League, they performed well in their local leagues. Now that they are performing well in the Club World Cup and the Champions League, they have nothing to worry about in their local leagues. The other teams in the local leagues are quite weak compared to PSG, and because of their poor performance, PSG has won the title without any problems every season. We have seen this consistently for the last few seasons, PSG is dominating the league and they will continue to do so in the coming seasons. Since the performance of this team is the best now, this team will be a difficult obstacle for any opponent in the coming season and it will be very difficult for every team to overcome this obstacle.
If the teams in Ligue 1 remain as they have always been, meaning they haven't made many changes to their performances, then PSG shouldn't face excessive pressure. They'll be fine and have nothing to worry about going into the new season. They can still dominate. Moreover, PSG are just one match away from winning another trophy. I think this season will be an extraordinary achievement for PSG.