Osimhen is undoubtedly a top star and it is safe to say that he will leave his current club to join another club in Europe but €130 million is too much for him. He may be a very good player but no club in Europe will spend 130 million euros to sign him right now. If Napoli agree to release him from 100 million to less than 100 million, maybe his change of club will be faster. A player like Harry Kane signed to Bayern Munich for €110 million plus, no club would buy him for €130 million. He can be transferred for a maximum of 110 million euros, but he may not be transferred for more than that.
He used to be a very good player but his performance has dropped and I can't imagine that any club would be willing to pay >100 million € for him. A sum under 100 million € seems more likely to me and if Napoli want to sell him then they will have to lower the price a bit. It would be a big surprise for me if someone would buy him at the current price.
Not being sided because his from same country as me but I feel Osimhen still retain his potential, Napoli failed to perform not him, a team does more effect to a player and also affects his rating. Osimhen needs a new branding from a top team, his definitely worth that amount as a striker. One spectacular fact about this player is that he is very good with both his head and feet, wherever the ball falls he can deliver as a striker, that's a complete striker for a good team who understands the game.