Actually last season was not much different from previous seasons, they are still too strong in Ligue 1 and continue to try to realize their dream on the Champions League stage. PSG are mighty in the domestic league, but not in other competitions. there were several weaknesses of PSG last season, one of which was that PSG's defense was not very good, midfielders who did not contribute too much in crucial matches, especially the Champions League. even messi took quite a long time to find his best game at PSG.
IMO, right now, psg is better than in previous seasons architected by galtier. I can say that PSG have a bigger chance compared to last season, for the Champions League.
galtier is a good architect for PSG this season, he motivates PSG's front line to be more solid and more cooperative, mentioning whether PSG has a chance to win the UCL this season, I myself see there are many other teams that are better than them, for example, Barca and Madrid (who has a solid defense and midfield), PSG's struggle will not be easy, it's been a tough season too.
Yes, PSG last season still had some problems and one of them was about Messi and also about their previous coach, but this season they have gotten better. With a performance like this where they have a coach who can get their players back to their best, and even the current coach can reshape the chemistry of previously broken players, then of course their chances of advancing further in the Champions League are very possible. I'm personally optimistic that PSG this season will reach the Champions League final, because this season is a season where PSG have a better form and their chances are very good this season.
messi's first year at PSG was a nightmare for messi and his fans as well, at that time his decline in performance was the talk of everyone but over time, he has rediscovered his identity and played better and even better for this season, PSG is lucky to have him.