Hi Leah sam,
After two hours exploring it, I got more and more awareness, that it is not a simple solution, like:
"A Motion Vector map baked to the object could be sufficient for a DIY solution to drive the vector-based displacement, while Point normals are evaluated?" – Like how about complex shapes where points are on the "end of the model but have based on a fold the normals directed towards the current motion"?
Please use the "Share your idea!" here
https://www.maxon.net/en/support-center
This should be solved by the developers to cover all cases, be well-tested, and be production-ready.
This is not just a simple forum answer; the more I dug into it, the more it became clear that I will not invest more time into something that requires proper coding. Sorry.
Enjoy your weekend.