It's too early to judge whether or not PSG's attack line is weak at the moment because in general PSG are still trying to get some players for the line they need. Besides, next season hasn't started yet, so it wouldn't be so accurate if I had to judge it now, even when Mbappe was around, PSG couldn't do much in the Champions League last season, except for only Ligue 1, where PSG was still the strongest to win. So let's see how PSG will fare next season.
PSG has not been showing good progress in improving its team. The result against al nassr has told us if the club is now degraded. PSG is far above al nassr last season but it's likely that if the gone of some important players have been degrading the performance from PSG at this moment.
By comparing the period when Messi was still with the club to the time he joined InterMiami as a new player, we can clearly see how significant the differences are. The attacking line become even horrible since there was no mbappe in the club.
I can even imagine how bad PSG once neymar and mbappe leave from the club. Enrique has not been successfully reassembling the team. He needs to work even harder. Im feeling so skeptical about PSG's performance in UCL next season.
The progress that happened with PSG was not so good at this moment. Even though PSG was dominating the match, but not even a goal being made by this club. PSG has been also buying so many players.