Give ART a try…strait up looks very good to me right upon opening…
No profile setting…
Embedded
Camera St is pretty much the same…
Now you can use as test I tried the DCP for the Pixel 3aXL my camera… and it looks like what you were expecting…
If you add the look and tone curve in the profile you get
Finally ART supports GainMaps and you can get this by applying the FlatField correction for your images
You will note the strong vignette of the DNG gets removed by this…
So this could be an option for you…