So far PSG have dominated Ligue 1 and that is part of their success in building squad depth so far. The Champions League is a difficult competition, so it is not easy to win even if the squad is good. However, PSG qualified and fought in the Champions League final several seasons ago even though in the end they lost 1-0 to Bayern Munich. It was part of an experience they must not repeat if they qualify for the finals next season.
PSG can dominated with Ligue 1 only and difficult for winning UEFA Champion League, last two season they have very excellent teams composition from Lionel Messi, Neymar, Mbappe, Ramos and Veratti but have eliminated on 16 round. Lack mentality winning in Champion League is main problem for PSG why can't become the winner and most highest achieving lead to final round last several years ago.
Luis Henrique has huge expectation by management and PSG fans, but I don't think his experienced winning Champion League with Barcelona can help PSG for the first time become the winner of UCL.
PSG have qualified to knock out round depend on their lucky only after having the same points with AC Milan, actually PSG can finish on first standings position but failed after losses points on many important group phase matches.