Before I read your description OP, I watched the trailer and thought “this looks heavily based on Simon Stalenhag’s art”, and sure enough he is the author of the work this movie is adapted from.

Simon Stalenhag’s art is a surrealist dystopian style that sometimes incorporates elements of Americana. I’d describe a good number of his pieces as cyberpunk, but there’s usually a certain anachronism to it, where it places these really dystopian sorts of high-tech aesthetics in the middle of otherwise mundane environments. Definitely not the neon and chrome sort of cyberpunk style we might otherwise think of.

Edit: here’s his website which has more art samples.