PSG have sold enough players this season that they only signed Dembele from Barcelona. There were many other star players including Messi Neymar in PSG but in the new season we don't see any star player except Mbappe in this club. Last season PSG released defenders, released strikers but did not buy any players, maybe they will look to enrich their squad in the next transfer window. If the team plans for the next season, they will certainly give the utmost importance to every position from the team's defense to the strike.
The truth is that having that too much players was not doing PSG much good because one of the things I noticed about PSG that time when they have Lionel Messi, Neymar, Sergio Ramos, Mbappe and so many other player, was that it affected the performance of PSG because it was as if there was no much understanding between those players and that was the reason why they were having issues wining matches because of there over squad, if you watch PSG in those days you will observe what I'm saying but since they sold almost all those players that was when PSG were able to come back to there normal performance, so perhaps PSG doesn't need too much players but what they just need is few players that can add to there improvement.
I wonder why PSG can't get good results like Real Madrid. Because after all, Real Madrid also has many star players in its squad but yes, Real Madrid still managed to get good results . In the past, the Real Madrid squad was entirely stars such as Raul, Kaka, Figo, Carlos, Zidane and many more but not only limited to that. Because ya, after all, Real Madrid is at least still a destination for star players until now but ya, Real Madrid still consistently gets good results also in the Champion League. Therefore, it looks like PSG certainly still has to take a long time to build a star squad and get success like Real Madrid . Because after all, basically PSG has good finances and of course PSG is able to bring in star players but unfortunately, so far PSG is still not successful enough, especially in the Champions League.