From last season to now I think, that PSG has good players on all lines and not only on the front lines. From goalkeepers, defenders, midfielders and strikers PSG basically has good quality players. But for some reason, even though PSG has changed coaches, but PSG has failed to get an easy win in every match so far. If this result continues in the next matches, then PSG will find it difficult to win the title this season. Also, it seems that buying star players is not the right way for PSG, because so far they have failed to have consistent dominance despite having star players.
Definitely improved without a doubt. They still should make a few more transfers but the summer is almost done and I do not think that we have that many players we could see changing clubs anytime soon. If teams wants to get rid of their players, they could just sell them to Saudi Arabia, and the teams who do not want to sell their players could just hold them and PSG could not afford to get them and would have to overpay for them which would be useless to do.
I think it will definitely be a situation where PSG has to wait until winter period or even next summer until they finish their entire setup. I bet that it's going to be even better, Mbappe may leave and that's fine they should get rid of him to stop the drama, but then they will have some great players.