You are in luck, the same post filter i used to pixelate in unity is available in Dreams 
I have definitely noticed that (incoming generalization) most of the discussion on reddit does center around ‘can it be photorealistic’ as the only bar to measure the quality of the render.
Personally, the non-photorealistic render is much more interesting to me because it does not exist (within easy reach of non programmers) in the typical render pipelines available to casual users. Even larger animation studios would have to spend quite some time and money to achieve the NPR look of the dreams engine.
To me it is very much like film/game concept art, in that it’s very rough, but beautiful, and can be created relatively quickly to get an idea across in a very visually appealing way.
The visual programming is also pretty elaborate, with basic nodes for math ops, but also advanced nodes for ray tracing or movement/velocity data. When used to drive music/visuals or when sroven by music visuals, it can be pretty versatile!