What happened to Osimhen is indeed quite unfortunate because no matter how Osimhen is a player who has a big role in bringing Napoli to the previous champion, but we can't blame the current Napoli who have actually loaned Osimhen to the Turkish League, previously Osimhen had a strong desire to leave and Napoli agreed to this by trying to offer Osimhen to a big club, But precisely the expensive price set by Napoli is an obstacle for the team that wants to recruit Osimhen at this time, so it is not entirely Napoli fault in this case, besides that after Osimhen issued a statement of wanting to leave, of course Conte immediately replied to the statement by expecting Lukaku to be in the napoli squad at this time, we know that Conte is a firm coach and will only carry out projects with players who want to stay in the the squad he has coached so far,So it is natural with that is statement that Osimhen no longer has a place in Napoli main squad this season.
You are so contradicting your words about Napoli not having a fault in the predicament surrounding the transfer of Victor Osimhen and at same time you're still saying about how high the transfer fee placed on Victor Osimhen by his club Napoli to have been the reason why some interested big European teams that came for Osimhen couldn't get to sign the player.
As for Antonio Conte from what I am seeing, he is just one coach that is in love with the Belgium forward Romelo Lukaku whom he prefers over Victor Osimhen in his plans as Napoli's head coach. Osimhen's decision to leave Napoli came to light as a result of the statements credited to the Napoli management on their social media handle about the striker which didn't sit well with his efforts in the club so far and not actually that he wanted to leave because he was tired of playing in the Napoli team.
I think the loan move to Galatasaray makes much sense to me because its better than not being active any competition till the next window transfer of January 2025. And he may still have chance of having big clubs coming for him still.