Since Victor Osimhen has one year left on his contract with Napoli, if he refuses to take a pay cut and insists on receiving the same salary he's receiving at Napoli, no top European clubs will want to sign him; they will prefer to sign him as a free agent when his contract with Napoli expires so that it will be easy for them to agree on personal terms with Victor Osimhen, and they won't have to pay Napoli money to sign Victor Osimhen.
I think the problem here is not with victor osimhen, he has a dream to play in Europe and will not turn down good offers he is getting from top European teams, its mainly Napoli who has place a huge amount on his transfer which they know will make most of these teams go away so he may end up with smaller teams like the one were he is now on loan. Napoli just want to make so much on his transfer that is now looking becoming a problem to them and the player. osimhen will be willing to accept the wages been offered him in Europe except that Napoli does not want to let him go already.