So this is to showcase that things have been updated, and they've actually managed to fix, what they were initially mucking up. This is the stairs and the slimes when they first appear.
TGS Trailer, released today, PS4/XB/PC Definitive Edition:
https://youtu.be/tXUy6_qqE0k?t=123
PS4/Steam original:
https://youtu.be/ZoFAckE1tZs?t=962
Switch:
https://youtu.be/e4NT_HjvBJU?t=787
It's not quite PS4, but it's DEFINITELY an improvement, and without that horrible white coat of lighter colour on everything. There are a few more comparisons I could make, but I'm in a rush. Suffice to say, they have added back in more foliage, higher res textures, more accurate lighting, and I hope they fixed the light source and shadow issues.
Light source issue on Switch? The game only allows one light source at a time, so when near a different light source, the entire game world changes to that light source. This is most noticeable at night, where when walking near a window, or through a doorway, the outside world will take on the light source of the indoor light.
Shadows? The game doesn't do well with dynamic shadows during sun movement, when there are numerous things to account for, from buildings to people to trees. So it becomes almost liquid like as the sun moves. This is less noticeable when it's at high noon/to of the sky, but is very noticeable near sunset and sunrise. This is probably fixed. It's far more common in handheld mode on Switch, but it does appear a bit here and there in docked. This should be fixed, as it would be a hardware limitation.
The trees in certain shots have a LOT more foliage, and it stands out as a higher res texture. So that's another positive. I don't think they'll use dynamic lighting, but probably to get the game to run as close to 60FPS as they can in normal play, while giving us some updated graphics. Definitely seems like the king's room in Heliodor has some more textures and stuff added back in.
Life can be unexpected. Embrace and prepare for anything.