I think the main problem is that he only has 5 goals as a striker, that in combination with his high price and expectations probably leads many people to call him a flop.The worst is it isnt even his fault since liverpool right now is in general completely out of shape i am pretty sure that haaland if he would play in liverpool right now would also have much less goals, but i would wait 1 more season before i would call nunez a flop he is a young player in a new far stronger league (Buli is stronger than liga nos but still worse than prem so even a higher step up) in an out of shape team
He is massively price fixed just look at the pc price, all players which are not fixed have a higher price on pc (with the exception of really rare top tier cards)
Papin WC, Kohler WC and Capdevilla WCCant complain about that
Maybe something like this https://www.futbin.com/23/squad/1569345
Did 25 with the exception of Romero if nothing over 83