Yes, the narrative nonsense might be an attempt at surrealism. Based on the ending that even seems probable. But even if that IS the case, it’s still not a good film.
It’s so jarringly bad in places it complete destroys any sense of dread or suspense that may have been building.
I do understand (I think) that the nonsensical plot turns are supposed to indicate the encroaching Hell-state but it’s badly communicated, both in the writing and in the visuals. I appreciate the intention, at least.