If the current rift at Napoli continues, they may stand a chance of loosing their top striker by the next summer window which may cause them to witness a gradual fall down the hill as not only the striker leaving but other players who worked with him will find it difficult for a while to adapt to the new replacement they will be getting for their colleague.
Oh, in this case, Osimhen's departure may not even take place next summer, but already in the next winter transfer window. Despite the fact that Napoli won big against Udinese and Osimhen scored one of the goals, it is still clear that the conflict is by no means over, because Osimhen refused to kick a penalty in the match, despite the instructions of the head coach to the players and scoring his goal, defiantly did not run up to the head coach. However, the players are professionals in their field and I think that Osimhen will show his maximum in the next Champions League match, if only because this is a great opportunity to show the product face to the future buyers of the player.