I think, Liverpool will definitely sign in Nunez because they will not allow what happened in this season to repeat itself again in next premier league season than to use this opportunity to get talented strikers ahead of next season. It will be difficult for Liverpool to miss next season title because those new players their managements are about to sign in will really help the team to perform well in next season. I don't think Manchester city will have any interest on Erling Haaland because their performance caused them to embraced this season title to prove to the whole world that they remain unbeatable in this season.
The weird thing is that they got rid of Mane very quickly. I do not know why they did that, but instead of getting Nunez they could have made a lot more money if they kept Mane instead, would be cheaper to just sign him, and would be saving themselves another transfer.
In any case, what is done is done, and they rarely ever player with a striker, they have players who are playing in "forward" positions, like on offense, but they do not have pure strikers like mbappe, ronaldo, haaland those type of players are lacking. With nunez they "may" have found something like that and I am guessing that it is going to be fine for them, wouldn't be a bad idea at all.