I don't know if the 150M for Osimhen will go to Chelsea this is just a rumor while Real Madrid will not prioritize the Napoli player, while for the Arab club Osimhen there is no interest there.
Osimhen must move to a team that can offer him the chance to win trophies. I doubt if he wants to move to Chelsea although Chelsea can pay him more expensive than other teams. Chelsea is just a mediocre team in EPL, Osimhen won't expect any trophy with Chelsea.
Real Madrid are starting to include Victor Osimhen's name on their wanted list if they fail to bring in Mbappe or Erling Haaland. Real Madrid's seriousness in looking for a new striker is very reasonable because so far they still lack quality strikers even though their current performance is still quite good. Florentino Perez has considered paying Victor Osimhen's €130 million release clause, Real Madrid really want an elite striker to sharpen their front line while providing a suitable partner for Jude Bellingham who has been outstanding this season.