
Not an artist but I guess it's more on the realistic side. I think the artists would want us to feel and see their world in a realistic point of view to show how it feels like to live inside their world rather than how we see it in our point of view as an outsider (reader/player/author)
Let's say, we are living in the manga world, as a character IN this world we see everything realistically but if we are an outsider (reader/author ) we view it in 2D.
Also, the medium of art take a role as well. If it's from manga, comic anime, we view everything as 2D, if it's novel, we view it through imagination or if it's game, we view it either 2D or 3D but let's say it has been made to a live adaptation; so now we will view it realistically because there are actors playing the role, moving in a real setup. (Im thinking of the movies; Jumanji and Enchanted as an example)
I guess it would boil down to author's intention and medium of art. I hope I'm making sense or atleast helped you with the question ( ̄∇ ̄")
I don't know if this is gonna sound stupid or not, but in isekai stories where they specifically transfer to a comic, manga, anime etc.
is the world 2d? 3d like cgi? realistic?