So some interesting things... The RAW shots are in a lot of ways better than the processed shots. Sort of washed out color-wise, but still a better starting point. I can't capture RAW from the Essential camera app, so this is from my Premium app.
The neon red is off in the joycons shot. I figured that would be a good stress test. The dog pictures are way too dark and yellow.
Here's the RAW files converted to PNG:
And the actual RAW files if anyone wants to mess with them.
It's almost as if it's averaging the color sensor and the monochrome sensor for the RAW files, then processing that.