Such news and information are purely speculations.
Victor Oshime goes nowhere, he'll stay with Napoli this season despite the links to Ac Milan. That can never be possible after all the strong relationship built with the people of naples. Osimhen wouldn't want to repay them that way. The quest for a central attacking player is important even Paris Saint Germany lacks one currently. Osimhen is currently hot cake in the market everyone wants him.
While it is true that player departures and expected transfers will provide issues for Napoli this season it is necessary to take into account the inherent unpredictability of transfer rumours. Since Victor Osimhen contract with Napoli is still in effect and there are no trustworthy sources to back up this rumour the report that he will be joining AC Milan looks dubious. It is important to wait to draw judgements until there are formal announcements. To maintain a competitive position in Italian League Napoli can still bolster their team with potential acquisitions and rely on their strong custodian and defenders. Even if the season may be challenging they have a chance to claim a high spot if not the first then at least the second.