Also, how are these 2 comparable at all? Obviously the video looks more "realistic", the first one is obviously a game demo of some kind and is stylized, whereas the latter looks like a terrible travel agency ad.
Don't focus on the emotional context of the scenes. Look at the physical content. They are both contain stonework, plants and a human. They are both large, detailed scenes lit by strong sunlight and a bright sky. As far as rendering technology requirements go, they are very similar.
> scratches my brain in a very unpleasant way, it's hard to describe the sensation. The closest thing is "disgust"
There is strong discontinuous motion effect because of how the video tech is based on a sequences of "first frame, last frame" inputs spliced together. There are a couple seconds where her behavior gets uncanny valley --particularly her hands on the door. Wouldn't be a concern in an unrealistic video game. But, would be in a this-realistic game regardless of the tech. And, there is a very slight warble in the fine details. But, you have to really look for those to distinguish them from MPEG artifacts.
I expect what a lot of people here are feeling when they watch the video is disgust based 90% or more just on the fact that the video was AI generated :/