Manchester City still has problems with their consistency, in the previous 2 matches they were able to win the match, but in the match that just finished they were unable to win again and could only draw. That shows that they have not fully returned to the performance we usually see. Well Paris Saint Germain is one of the big names in the Champions League, but if you compare it to Manchester City, I still see Manchester City as better. But that also cannot be a guarantee and that is also the reason why this match will be difficult to predict.
Man City has not fully improved and maybe it is true as you said because in the last match against Brentford they were only able to draw even though Brentford's strength was not much better than theirs. I don't see Paris Saint Germain as one of the big teams in the Champions League because there is no history that could possibly be said so and even this season they look worse in the group phase as the points they have collected.
Both Man City and Paris Saint Germain have performed less convincingly this season in the Champions League so there are many doubts about both teams. In the match that will take place, perhaps if we look at the performance of the two teams, Man City is still much better even though their performance is not yet completely consistent.