The only artifact I can see is that lines, e.g. moldings become wavy. Not very jittery, but consistently wavy. Adding some line detection to force-straighten? Perhaps the same would be true for ellipses for images with large circles. These interior videos had more straight lines, though.
example for character animation:
https://zju3dv.github.io/animatable_nerf/
example for the static world already working in Unreal engine real-time:
https://www.youtube.com/watch?v=GjpzMDur7UY
diffusion models for NERF asset generation:
https://sirwyver.github.io/DiffRF/
https://dreamfusion3d.github.io/
Physics:
https://www.youtube.com/watch?v=Md0PM-wv_Xg
https://www.youtube.com/watch?v=Eklh1pIAri0
and there are a lot more research being done on this, it's hard to keep up with all the things happening in AI