Regarding PSG's dominance in League 1, I don't think Luis Enrique needs to worry too much even though Mbappe will leave for another team in a more different league. But Luis Enrique must also have time to think about who he will target in the next transfer window by preparing sufficient money. Because if the target is a player whose level is not much different from Mbappe, of course the costs that must be prepared are not small and I am sure that PSG has the ability to do that.
Yes, of course PSG will still be able to dominate Ligue 1 by bringing in players who are one level below Mbappe such as Osimhen, Rashford or Martinelli. PSG is still too strong for other teams. But I think Nasser Al-Khelafi wants the Champions League title. Enrique will not be able to secure his position if he can only win the Ligue 1 title. PSG must be able to appear competitive in the Champions League. I think this season PSG will also bring in several other players besides strikers. Of course they want to be able to compete with teams in the Champions League. I personally have never included PSG in the list of favorites to win the UCL. Of course everyone has their own views but I don't think PSG is worthy of competing as a potential UCL champion team at least until this season.