we are what we are mainly because of our environment and selection pressure. It's hard to prove it since we don't have the tools to prove it but I would say yes, gravity plays a role in our singularity.
Gravity does not leave a unique biological imprint on individuals in the way that fingerprints, footprints, or DNA do.
Nature of Biological Uniqueness
Fingerprints and DNA are determined by genetic and developmental processes at the molecular and cellular level, shaped by complex biochemical interactions and minor environmental variables during development. There is no evidence that gravitational forces directly influence these patterns to create uniqueness among humans.
Gravity’s Universal Effect
Gravity acts as a universal force: it affects all matter equally, exerting the same acceleration on every body regardless of their biological traits or individual differences. While gravity affects physical processes like blood circulation, bone density adaptation (especially in astronauts), and plant growth patterns, it does so in a general way rather than imparting a personalized "gravitational signature".
Scientific Perspective
No research supports the idea that gravity molds individual physical characteristics—such as fingerprints or DNA—such that each person has a unique “gravity imprint”. Instead, human uniqueness arises from genetics, epigenetics, and stochastic biological factors.
Exceptional Contexts
The only known exceptions are extreme environments (e.g., microgravity in space), where gravity alters overall biology but not in a manner that produces individually unique traits—rather, all organisms subjected to microgravity display similar physiological changes.
I would suggest collecting data from indigenous peoples around the world who have lived there for thousands of years and superimposing it on a gravity map of the Earth.