I've had dreams like this - I think a lot of people have - where you find yourself trapped in a space, an office or a mall or wherever, one common version seems to be a public bathroom - and you keep moving through an endless maze of doors that lead nowhere.

The article has it wrong, this was a archetype of the human collective unconscious well before 4chan turned it into a meme.

Which article is wrongm Both the article and Wikipedia entry focus on The Backrooms which are a type of liminal space. Yes, liminal spaces have existed in fiction, dreams, etc. However, here the discussion is on The Backrooms and how that idea and aesthetic became very popular very quickly.