You are right. Considering the chance to win trophy in domestic league, Osimhen seems to choose PSG over other teams. There is no other teams that have a strong squad as well as PSG in France league. They are almost similar with Bayern Munich in Bundesliga before Leverkusen becomes a stronger team this season. The domination of PSG in France league is very clear, they almost win the domestic trophy every season.
Playing in UCL is another reason to join PSG. I'm sure Osimhen will always be interested in playing in UCL every season because it is the highest level of football competition. If Osimhen can win the trophy in UCL, this means Osimhen be the best striker in the world. I'm sure Osimhen will try to join a team that often plays in UCL.
Well, PSG is a perfect team for him if Osimhen considers those 2 matters.
Is Osimhen good enough for PSG? I’m almost sure that during Spalletti’s time, there were better times for him and many clubs were interested in him, but now everything has changed, although he is a good striker, his results are not as good as they were in the past. In addition, Napoli still considers him a top forward, and does not want to let him go without a big compensation, because he has a contract with Napoli until the summer of 2025.
So it is quite possible that he will remain in Naploi again, as he did in the last transfer window.
PSG will probably spend a lot this transfer window as they themselves have stated that they will no longer go after players like messi, neymar and so on(just an analogy), apparently they want to buy players who will fit better into the squad and not for their past achievements. PSG seem to have finally realised how to build a team properly, so it's quite possible they could buy the same Osimhen for big money. After all, when it comes to money, it's all about price and if Napoli are offered a large sum, they are unlikely to turn it down