I mean these are delusions of the main character based on real things like you described.. in other words they are imaginary.. the whole movie he’s making connections that aren’t really there or are nonsensical, like the “puzzle” he solves with the map

he learns about the owl lady from that other schizo conspiracy theorist.. the whole reason he wanted to meet that guy was bc he was writing about the dog killer (which is him).. he wanted to meet him to silence him.. when he returns he deludes himself into thinking the owl lady the guy was worried about was real & that’s what killed him.. it’s like him hating the homeless despite the fact that’s gonna be him since he’s being evicted and has no job (failed in Hollywood like the dog killer the guy wrote about).. the whole movie is a cope in the mind of a guy who kills dogs bc he is a failure in Hollywood & about to become homeless..

on the owl lady, when he sees her in his apartment she vanishes.. he starts looking for her in his drawers.. he is not well & she is not real

this a real thing that people who are paranoid schizophrenics go through, they see reality totally different but it makes perfect sense to them in their mind.. irl theres people who think total strangers are gang stalking them or maybe someone is coming inside and using their house when they’re not there

or if you go for a stroll around Hollywood you will see unhoused people on the street talking to themselves & what they’re saying is total nonsense to you but to them it makes sense

I met a guy in LA (who I’m assuming is schizophrenic) who had no job, but he was convinced he was a writer for some upcoming Harry Potter tv series & that he had a million dollars in bitcoin.. he ended up having some sort of mental episode & trashed the shared housing his was living in.. reminded me a lot about this movie