I agree! these are completely unfounded rumors, Milan currently cannot afford a player of high economic value like Osimhen, the valuation given by Napoli is around 180 million, an excessive price for any team in Serie A. I also think that Osimhen will never want to leave Naples to join another Italian team and as he himself said in an interview he will leave Naples only to go and play in the Premier League
Italian teams cannot afford the high price asked by Napoli and regardless of what the player express regarding playing in another Italian team, I highly doubt Napoli will let him play with their direct opponents!
For Juventus, it appears they figured out a way to bring Lukaku from Chelsea although rumours are still mentioning an eventual swap deal with Vlahovic.