I watched the Davis Morgan video on the novel version of We Used to Live Here. It's objectively a supernatural story and, at least to me, very silly, vs the nosleep version potentially being an unreliable narrator with some unspecified, unmedicated mental illness. It's basically Backrooms (the SCP style community driven one with all the levels, not Kane Pixels') with specific rules for how to hop between dimensions, with the realities overwriting/updating themselves to prevent paradoxes when someone enters/leaves a reality, though the person retains their own original memories without acquiring any new ones to help them find their place in the new world they find themselves in, leading to them being institutionalized and diagnosed with mental illness. It wasn't just the house that was special, the whole mountain was anomalous though the focus is still on the house but you get blurbs about other locations nearby
Most of the new content comes in between chapters, it's non-narrative world-building, newspaper articles, Wikipedia entries, stuff like that. The only really interesting thing was a newspaper article about a doctor losing his license for reinforcing the delusions of his patients because unrelated patients started telling stories about their previous reality that all lined up, so he started believing that something was going on and trying to figure it out. It did have a set of Donnie Darko's Philosophy of Time Travel-style rules that I guess were also somewhat interesting, basically Eve and Charlie were punished for entering the house with the intention of profiting off of it
Thomas is an immortal reality bender who's compelled to assemble the perfect family but every attempt ultimately leads to him having his face mutilated. I don't remember if the nosleep version confirmed it but, while he wasn't the one to paint the paintings he was the one to edit them, painting himself into them
I like the nosleep version better but I wasn't crazy about it, I didn't really like the novel version at all, I think it just overcomplicates and overexplains things