I worked at a Target in an old mall and there was a corporate office in the basement that had been abandoned years before due to black mold. I was responsible for doing a once a week check, just making sure nobody had been down there, that place majorly creeped me out even though I had the key and had a high degree of confidence nobody else was going to be down there. Also “black mold” evokes an image of a creeping horror even though rationally I know just going down there once a week isn’t going to give me some horrible respiratory illness.
"Backrooms" and liminal spaces take me back to my early nightmares/kid fears, or the way they've stuck in my memory, at least.
I have the same sort of memory reaction/association with chillwave/vaporwave, in part because it's chopped and screwed in a way that suggests memories of vibes.
The teaser trailer narration mentions the spaces as something the place itself is remembering, and misremembering, and that actually made me sit up and listen, because maybe this is an existential Internet horror film which actually gets the existentialism right!
Totally get why it wouldn't click with some people, but man, it does with me.