lukaku will never be able to replace Osimhen for the simple fact that to score all those goals you simply have to do them and lukaku has been a static player for too long and is not capable of scoring all those goals now if Conte likes them they will surely take him but they won't take him I see myself capable of such an adventure
Every player on the front line, especially a striker, must always receive good passes from his teammates in order to score more goals against his opponent. But if a striker doesn't get this, of course anyone in front will always find it difficult to score goals, including players like Lukaku. And from the matches that Lukaku has played previously, including the Euro match, of course everyone can judge what Lukaku's condition is currently. So it is very possible to say that Lukaku will find it difficult to replace Osimhen if Osimhen is really released by Napoli at this time.
If you look at Lukaku journey so far in Serie A we can't say that Lukaku is a static striker at the moment, maybe it's too far for us to compare between Lukaku and Osimhen at the moment if you look at the age factor of both, but we can see how Lukaku can still be a very sharp striker when he was played by Roma last season. Lukaku scored 13 goals for Roma last season even though he often came on as a substitute, but he was only two goals behind Osimhen in terms of goals at the end of the season, so I think Lukaku will still be able to make a big contribution to Napoli if they sign him especially if Lukaku can create a pretty good chemistry with Kvaratskhelia as a good passer at Napoli so far, we cannot deny that Osimhen, who has been Napoli top scorer, has received a lot of good passing support from Kvaratskhelia , and that is the reason why PSG previously wanted to recruit Osimhen and Kvaratskhelia at the same time.
perhaps I speak because of my opinion on him and my opinion may be influenced by the fact that I don't like him as a player but during these years I have always seen Lukaku as a static player who only managed to score goals with his back to the goal and if he managed to turn to go over the defender, for heaven's sake this is what the attacker has to do but he is certainly not a fast player who manages to jump the man easily in the last few minutes then he has gained weight