Kvaratskhelia is a young player who is quite talented for the attacking position.
He was successfully brought in by Napoli for a fairly high transfer price and it seems that Napoli will still keep him until the contract expires in 2027 and today marks one year since he has played for Napoli.
During his career in football Kvaratskhelia has also won quite a few titles and this can make him a player with high transfer fees.
Napoli will not expect much return of investment from Osimhen who is in his peak performance and market value and who doesn't have much time left with the team before going as free agent or see his value dropping so better to sell him right away.
For Kvaratskhelia, he is still young and his contract will not run shortly so they whether keep him or sell him if they find +€100m offer.
There is no longer any hope for Osimhen in Napoli because we ourselves can see how Osimhen has been performing recently and we can't really rely on him like before.
Kvaratskhelia is far better than Osimhen and anyone would prefer to keep Kvaratskhelia which has also managed to provide quite a lot of benefits to Napoli for this one year.
I'm not sure that Napoli will let Kvaratskhelia go despite the offer.