Just before you make a conclusion about lukaku been the best replacement and a deadly bomber, let's take a stroll down memory lane, at Roma where lukaku was, where he was loaned out by Chelsea, there wasn't so much of an epic or incredible performance from him even with the presence of his former Chelsea boss Mourinho, he wasn't too exceptional, he was a little above average so it will be safer if our expectations are more realistic than been a hyper one. I believe he is going to do well reuniting with his former boss back in Napoli but you should also know as it concerns the records, osimhen has an incredible record, one which cannot be easily overturned in Napoli so I wouldn't be so quick to seeing lukaku as a match.
In this case I really agree with you, because if you look at the reality, Lukaku is no longer as sharp as before. Because his performance in Rome is quite clear proof of his performance. Apart from that, his performance at Chelsea was also not good so Lukaku was loaned to Roma. Perhaps the age factor is Lukaku's biggest obstacle at the moment, because it cannot be denied that Lukaku is currently 31 years old. Because of this, the performance will definitely experience a slight decrease. But even so, he will definitely still be able to compete well in Serie A. It has been proven that Lukaku is now able to score goals at Napoli. However, if it is said that Lukaku is the deadliest bomber, I also don't agree. The reason is that there are still many other great strikers in Serie A such as Vlahovic, Thuram and Retegui. So with this, Lukaku currently does not deserve to be said to be the sharpest striker.
Apart from that, if we compare Osimhen with Lukaku, if we talk about the golden age of each player, it is clear that Lukaku is superior to Osimhen. But if we talk now, I think Osimhen is indeed better. Because Osimhen is of course still very young, apart from that last season, Osimhen was able to bring Napoli to champions in Serie A. So with these facts, it is not wrong to say that Osimhen is better than Lukaku at the moment.