Maybe I’m just old, but saying “1 vs 1 Free for All” is a nonsense statement to me.
I see FFA as something that exists in opposition to a Team gametype.
I think the FFA genre in the context of Fortnite Creative is something like ‘The Pit’
So the title of that map makes me expect something like the pit, but with only 2 players. (I see it is a 16 player map though)