Luis Enrique is here for a 2-year contract. Of course this doesn't guarantee his second season with PSG but most probably he would stay unless he makes the team worse than Galtier's management. Therefore I will be losing my faith in Zidane to manage the team in the near future day by day. Because in the meantime Zidane would wait for an offer from France just as he has done so far. When Enrique's contract ends Deschamps is also going to have not much time in his contract.
Until then France might even decide to part their ways with him who knows. Because we have Euro 2024 ahead and the result of it could affect the decision. In this case Zidane would get a huge opportunity to take.
Last previous manager in PSG not guarantee will stay for second year after Christophe Galtier and Mauricio Pochettino sacked on the first season, looks difficult stay for next season as PSG manager depend how success in Champion League or not. I think challenge for Luis Henrique how to prove his capacity and be able to last for the next 2 seasons with PSG, its not easy without get good achievement in Champion League can't guarantee for Luis Henrique stay for longer time although success defend Ligue 1 tittle and French Cup.
Zidane has rumor only after several time denied to be PSG manager, he has priority with France national teams manager and not easy to sign him as PSG manager.
I can't say much, except to see the depth of the PSG players in the 2023/2024 season. so far, Luis Enrique has not named the player he wants. ideally, Luis Enrique builds the foundation of his squad first to form the team he wants. because, PSG is currently not supported by their star players. that's why, it's too imposing if Luis has to bring PSG to win the Champions League trophy. moreover, now that Mbappe's status has become a hot issue in recent weeks. if, he leaves the French League in this summer's transfer window. that means, Enrique must bring in a potential replacement. Or, he will form a new team strength according to his characteristics.
The point is, PSG must provide support to the coach by pouring out funds to buy the players he wants in his squad. if, PSG can go far in the Champions League. at least in the top 4, it is likely that Enrique will stay in his second season. but if the results are worse than Galtier, then we can already guess what will happen. but I'm quite sure, that Enrique is able to bring PSG to perform much better. however, he will need time to make this team as solid and competitive as the club and its supporters expect.
As for Zidane, don't get your hopes up if he is willing to coach the French League giants. in fact, I doubt if Zidane will become coach of the French national team.