I'm not suggesting that you or I don't have free will. But I do think that free will is conditioned by a vast array of circumstances, including our own biology and the human brain.
I think of it this way: everyone has varying degrees of free will. We have free will but it's contained within certain parameters, certain limiting factors. It's impossible to know what those factors are for another person. We may not even be able to see our own limiting factors.
We have free will but it's conditioned or limited by conditions. Conditioned free will or free will within certain limits or parameters.
How does karma function in this context? Two people commit the same action, whether good or bad based on their intentions. One person fully understands the consequences of their actions. One person only partially understands. Do they each generate different karmic consequences even though they've committed the exact same action? So the karma we generate is linked to our understanding or the world, our actions, and the consequences of our actions? A child does not generate the same consequences as an adult. So karma is on some level psychological?
It's an interesting topic....