In Ligue 1 PSG is still safe, they will continue to dominate because in Ligue 1 it is not as competitive as other leagues. Even though there is still Mbappe, I think the quality of PSG's games has decreased. several players left the team without good anticipation from the club. and if Mbappe leaves the team next year and PSG has not found a replacement, it is possible that they will also have difficulties in Ligue 1. Moreover, they have to compete with strong teams in the Champions League.
However, there is confidence that PSG will make crazy player purchases in the transfer market. they have money, and they don't want to get fan pressure.
Luis Enrique was not only given the responsibility of managing PSG in Ligue 1 and management is demanding more from him for big competitions like the Champions League. But so far he has failed to produce good results for PSG and it is feared that he will suffer the same fate as the previous coach because he was only able to make PSG strong and dominate the domestic league. If you look at the players that PSG has, it shouldn't be too difficult for them to play better in the Champions League and they shouldn't lose with such a big score. Luis Enrique must immediately improve his bottom line because they are having difficulty facing the opponent's fast-paced attacks.
Whether or not Mbappe leaves next season, PSG must immediately overhaul the team and need to add several players to make it look more convincing. Losing so badly to Newcastle was quite embarrassing and it was a sign that Luis Enrique's strategy was not right and they didn't seem to have the mentality to appear in the Champions League.