It will indeed be very disappointing when no one is interested in Osimhen and maybe now is the only right opportunity. In fact, we don't even know when Osimhen will experience a decline in performance and that will make its market value also decrease.
Victor Osimhen was good last season for Napoli, but it was not an individual performance, Khvicha Kvaratskhelia had a lot of influence and created a lot of opportunities for Victor Osimhen to finish. If Khvicha Kvaratskhelia leaves Napoli and Victor Osimhen remains, his performance may not be as good as last season because I do not see a player that can do what Khvicha Kvaratskhelia does on the field for Napoli when he plays. Khvicha Kvaratskhelia may move to Newcastle because they are interested in him, If he moves and Victor Osimhen remains, his value from this season may drop.