There is still a possibility of heading there about the problem of Osimhen being ridiculed by the club's own social media, although there has been clarification but first the news is that the agent does not accept this, so it could be that this internal problem is getting longer until he is uncomfortable at Napoli.
The problem between the two parties was already complicated, and at that time it was made worse by a post from Napoli's social media, which was indeed, arguably, very unwise. Especially at that time the situation was indeed unpleasant.The contract until 2027 includes an active clause? It seems that Osimhen is determined to leave, only that he will return to Napoli if his loan is completed.
Source: SSC Napoli-Osimhen
Yes, however, he is still a Napoli player and if his loan period is over, then Osimhen will return to Napoli. Both have also agreed that his contract will be extended until 2027. Whether after the loan ends it will be extended at Galatassaray or will be sold, that will be another consideration, seeing how Napoli's condition is and Osimhen's performance until next season.