Yes, I also agree that Osimhen's good performance will be a waste if he stays at Napoli for too long. Because he needs to try to play at a different level at a different club or in a different competition such as in the EPL or in Laliga. Actually, quite a lot of people have wanted Osimhen since last season. It's just that Napoli set a price that was too high which made all interested clubs prefer to withdraw slowly. Napoli without Spalletti is very different. But Napoli without Osimhen would also be worse. So I also understand why the club always wants to keep him.
I think Osimhen will be the hunt for elite clubs again in the summer, it's just a matter of him deciding his fate whether to stay or leave with his new experience.
Because last season Osimhen was on fire with Spalleti so that he was pegged at a high price but if now his performance has declined a little, I think the price will decrease further below 100 million EURO.
Rumors where the news was that Osimhen would go to Chelsea which was in bad shape, but it was still a small chance there if there was an offer from a stable team maybe Osimhen would reconsider.