Graphics don't impact gameplay, but this game really does look flat-out bad on a full-sized TV or monitor. Using FSR1 upscaling the realtime shadows (required for dynamic time of day) all "crawl", like a constant flicker in any motion, and it's really distracting. Level of detail "clicks" in when you're 20 feet away from objects, also extremely noticeable. And beyond the visual issues, it also suffers from a poor framerate in many areas. It can't even hit 30fps all the time.
It's true that gameplay trumps all, and it definitely didn't push me off the (excellent) game, but the Switch hardware really _substantially_ impacts the experience.