I get why Kane and A24 went with the route they went for with Backrooms but I honestly think they could’ve also gotten away with a film that was just found footage and still have it work.
Found Footage #3 is 45 minutes and never stops being eerie and intriguing.
[looking at people younger than me] you have your whole life ahead of you, [looking at people older than me] you have your whole life ahead of you, [looking at myself] it's over.