Our real world can logically never truly intersect with fictional worlds.
The fact that people have created a fiction in our view just means that they have created, for example, words and pictures.
The authors have not created any new realities, they have not created intelligent and spiritual beings. They have just created stories within books, comics, games, TV, movies, or animation.
We compare the fictional worlds from their points of view. And to them our world does not exist in any sense.
Author avatars, fourth walls, and any similar silliness are just part of the same fiction and nothing more. It is not our world, and it is not us.
The difference between reality and fiction is generally pure nonsense, as are any "real humans solo fiction" discussions.
However, within the constraints of fiction itself there can be any number of differences between fiction and reality, but this is not necessarily something particularly impressive by our standards.
We still have to evaluate the characters by their respective feats and definitions.
For example, Azathoth, The Law of Identity, and Featherine Augustus Aurora are able to look at beyond dimensional structures as mere fiction.
This qualifies them as much higher tiers than, for example, Mister Mxyzptlk, who is strictly able to look at 3-Dimensional reality as mere fiction.