Valorant maps that "are one sided"

It just do not enters in my mind that some maps are one sided (like people say that split is defense and icebox is tr)
I dont know like, icebox I think that is great for defense to rush get some kills and advantage first, like you have the advantage of pixel and imprevisibility and u cant kill no one?
The only one problem on icebox for defense that i see is the fast way of rotating (the game of Loud x Optic showed it well) but its not that u cant look mid or maybe put 3 on site, on sentinel on the other bomb and one duelist mid i think things like that are not hard to counter