When will Osimhen's contract with Napoli expire? IIRC it should be in 2026? So he has around 2 years left on his contract. I wonder if the plan for other teams is to let the contract run down and hire him on a free transfer, probably with lower wages too. 2 years later, he will be 28/29, not that young anymore, so a club probably has bigger leverage at the negotiation table. If he managed to prove that he can score a lot of goals regardless of the club he plays for, maybe he will still negotiate for a somewhat higher salary. If that does happen, I wonder if Napoli will regret their decision or not. CMIIW.
These are valid reasons enough for Napoli to want to agree on a good fee with Galatasaray this summer so he can leave to avoid a situation where they will have to lose him for free or for a fee way smaller that whatever Galatasaray will be willing to pay now for his signature. In my opinion the right time to make it happen is now.