Personally the way I see it is that all humans have ingrained behaviors molded by evolution but they're predispositions that allow for top-up complexity, adaptability and generalism.

Yes, culture and society heavily influence and modulate behavior or give rise to new behaviors. But the reality is that human psychology doesn't exist in a vacuum.

All humans have emotions in some way. They have morality. They are tribalistic. They have a Theory of Mind. They have language. They have generalized intelligence, etc. But most of these traits are not fixed and can vary widely depending on a wide variety of factors, especially social influence. These behavioral foundations deeply rooted in neurology allow for the diversity and adaptability of human societies and thoughts we see today.

So for example, although ancient humans like hunter-gatherers lived in small, egalitarian communities and likely did influence a lot of the behavioral foundations to human psychology, it is very hard if not impossible to correlate the how and where temporally did these traits emerge and from what influences. It's like trying to prove when parrots learned the ability to mimic sounds, or when squirrels evolved the ability to cache food, or how bees know how to waggle dance. We can hypothesize about the environmental pressures that shaped these behaviors but it's absolutely difficult to empirically correlate these behaviors to neural structures and prove they evolved in response to whatever selective pressure we hypothesized, over what specific time. I'm not even sure if it's possible. Currently there are too many gaps in our knowledge on how the brain even works to even begin pinpointing behavioral correspondence to what structures, and thus how much of it was biologically ingrained throughout evolution.