You are right, Osimhen would definitely be more useful if he joined Manchester United, because in Napoli he can be said to be no longer considered. Not because he played badly, but it was all caused by personal problems that Osimhen had with Napoli. So that's why Napoli currently does not make Osimhen a main player anymore, even this season Osimhen was loaned to Galatasaray. That's why rather than Osimhen's fate being unclear at this time, I think joining Manchester United is the right solution.
Rasmus Højlund is not a good striker while a big club like Manchester United needs to have a top-notch striker who is goal productive and stable in performances. Osimhen can help them to resolve issues at this important position but Rasmus Højlund can be kept and used as an alternative striker for Osimhen. During a very long season, Manchester United need to have more than one striker and Højlund is an acceptable substitution for Osimhen.
I agree, manchester city had a disappointing season
Pep Guardiola has done badly this season, we don't know all the reasons behind it, but after so many years that he has done well if a season doesn't go very well there's no point in crucifying him, let's wait and see what happens
Pep Guardiola actually had a hardest season since his coach career debut many years ago with Barcelona. He left Barcelona and Bayern Munich after he felt that he would not be able to gain more success with those clubs but he has never experienced a season like last one with Manchester City. It's a completely terrible season with Pep Guardiola but he successfully managed to finish it in top five. Therefore, Manchester City will participate in Champions League next season that gives them to join this high competitive league while ensures their club revenue.
Manchester City spend a lot of money each season and without participation in Champions League will suddenly damage their club's financial status a lot especially in annual financial report to UEFA.