For every decision a player makes, there's usually a reason for which they Carry out such at almost every point and the case of osimhen doesn't seem any different, he might have a reason which could be emotional and for some reasons I don't think it will be financial because he obviously had a very good offer from the Saudi,his heart has been to olay for an English team where he hopes to peak his career but since it couldn't come through for him, he went for a place where he could still win the English attention easily this is my taught thou, if maybe he had gone to the saudi league it's very possible he wouldn't have been getting English considerations again because his quality may likely drop while at the Saudi league but in Galatasaray, he's got some chances there after and it's a loan contract without a buy option so he's still got an opportunity which could be considered in the near future
I think what he should do is seek out all the attention on his goals, because that is something that they have to see and that will have a great positive effect on them , of course , Galatasaray will make him shine and if this team excels as I think it will, Osimhen will be a figure just like I was at Napoli where he revived that team, he just has to play for himself, something like what Barcelona did in the time of Dinho and Messi, they played for Messi and he conceded the goals, that was Pep's strategy.