PSG still have players like Ashraf Hakimi Dembele so they have no reason to worry about the local league, they will still be champions in the local league tournament. PSG will also have a huge points gap with their nearest rivals.
With the way PSG have performed in their first two games in the French League, I think they may have forgotten that Mbappe is no longer in their team. Because in the first two matches we saw PSG score a lot of goals and win two matches by big margins. But the most important thing is that the next season does not look good for PSG in the Champions League because PSG does not currently have the kind of players that a team needs to do well in the Champions League.
PSG will not have difficulty in pursuing domestic titles because there are still many players who can be relied on and are more qualified than other clubs.
I agree with you that over time, PSG will forget Mbappe in league 1 but will always be brought up when appearing in the champions league.
Maybe we are too early to judge whether PSG can perform like last season in the UCL because the new regulations in the UCL give opportunities to other clubs that are not favored and all of that is because popular clubs in the UCL will be busier and tired of having a tighter schedule.
If Enrique can take this opportunity, PSG can perform well in the champions league this season.