I think it has more to do with the artificial boost in resolution not matching the “native” resolution of what the film grain would be in actual film.
Lots of stuff looks wrong with higher resolution and framerate, it’s not the thing (like grain) is inherently wrong, it’s just being done poorly.
Foley sounds and lighting are the things that annoy me the most about modern cinema. Those two characters looking into the sunset in the background… where exactly is the cool white light illuminating their faces coming from?