I agree that Victor Osimhen is more likely for Liverpool to get than Mbappe, but regarding going to play in the Europa League I don't think it's a problem because the Liverpool team is a championship candidate team and it's just that last season they were down and of course next season this team will target again to can become a champion and that way it will be very good for Victor Osimhen's career development.
To be able to get Mbappe I don't think it will happen, Victor Osimhen is very possible and very close in my opinion.
When I compare Darwin Nunez vs Victor Osimhen then I think Osimhen is the better striker. Liverpool can prioritize Osimhen's transfer because so far Darwin Nunez hasn't performed as great as many people expect, but Nunez can still develop. Osimhen can make Liverpool's attack better because of his good finishing stats compared to Nunez, but are the rumors true?
Darwin Nunez can play on the left wing, so even if Klopp plays both of them in one game then of course it doesn't matter. I think if Victor Osimhen really comes to Liverpool, then the Premier League competition will definitely be more intense than last season.
You made a good point about these two players because we know both players had good seasons in their teams and both players are young and both players could move to great teams Nunez joined Liverpool and he couldn't have the good perforce there, at least he could have the performance we were expecting to see from him.
That's why other teams do not officially send offers to Osimhen because they think they are going to see the same story about this player because the money they have to pay for Osimhen is a huge amount of money which can make it risky.