In my head 100 times out of 100 my "decision" to raise my hand or open my mouth results in said action. Are you suggesting the fact each decision is made at all is due to non-deterministic quantum effects? I thought neural activity had already been demonstrated to operate at a classical level though.
If you are open to another viewpoint, that free will is an illusion, listen to Sam Harris’s take on it (he’s a neurologist). Here’s a summary of his book on the topic as well as mentions from a few other cognitive psychologists and neurologists who came to the same conclusion: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6701738/
Yes, familiar with his take. I honestly don't see any alternative hypothesis that makes sense. But the illusion is too good to allow me to believe that it is one.