I'm not saying the Gunners can't get him but all I'm saying is that Napoli can change their mind of letting the player go and if that happens Napoli won't sell Victor Osimhen for any reason which means they will increase his pay and come to an agreement.
Managing Gabriel Jesus is a bad idea because he can still get injured like it happened last season when they needed him the most and it will force Arteta to convert a winger or a midfielder to play as the number 9 which is not helpful in any way.
When you talk about Thomas Partey you'd that this guy is a good player, he has everything every manager would want to use to protect the defenders from stubborn attackers. I wasn't sure if Thomas Partey was going to leave not until they decided to decline his request, it will be a big loss.
Fristly, remove Osimehn from the list of strikers Arsenal have in mind. Its either Gyokeres or Sesko, Ill rather prefer if they get both.
As for Gabriel Jesus, the injury is not an excuse, this is probably the first or second injury he has in Arsenal, not too long. Arsenal should let him stay and be at his peak moments (times where he begins banging goals), then they sell him off, if they manage to win the league in the upcoming season, his transfer fee will be high so by January they can make good money from him.