I think Lukaku's decision to stay in Serie A was a good decision. Lukaku performed very well in Serie A and maybe it is because Lukaku has a playing character that suits Serie A. I see that Lukaku cannot perform well in the English league with Chelsea. Although to be honest, I think Lukaku is the player who wastes the most chances. But he has a very strong physique which allows him to break down the opponent's defense. I think Chelsea should consider giving Lukaku to Napoli because it will be difficult for Lukaku to compete in the English league and that will be a loss for Chelsea.
With Inter Milan Lukaku played well but after he returned to Chelsea returned badly after that went to Rome the same appearance never amazed again because it was an old age factor 31 years he has a large body this is not a little agile because of his burly posture but in my opinion this slows down a little as an attacker.
Maybe Conte wants Lukaku for other reasons, so far only news that is not yet valid but there is still a possibility that he stays in Serie A and soon joins Napoli.
To be honest, my own opinion is not so sure Lukaku will perform well again.
Age and physical factors will certainly affect Lukaku performance, Conte wants Lukaku because it is very likely that Napoli will let Osimhen go. Maybe in Conte view, Lukaku can still make a real contribution to Napoli for the next season or two. Apart from that, Lukaku doesn't need a lot of adaptation time, because he has experience playing in Serie A with Inter and Roma. We know that Enzo Maresca does not include Lukaku in his plans for next season, so Lukaku will definitely look for a new club in this transfer window, even if it is not Napoli.
On the other hand, Roma actually deserves to make Lukaku status permanent, but it seems they are reluctant to spend the large budget set by Chelsea. It is reported that De Rossi prefers to build a squad made up of young players, Lukaku age is no longer among their priorities. Speculation about Lukaku future is full of question marks, this is almost exactly like last season, and I predict Lukaku will not leave Italy. Napoli must move quickly to get Lukaku signature, because they will have difficulty if the Saudi Club makes a higher offer.