As I sit here aware of my consciousness I can adequately 'feel' like I have the choice of what to do in the very next moment.
I want to use the analogy of a plant growing toward the sunlight to elaborate on some context behind why I believe free will could be a hallucination.
A plant over time will extend its stem and grow toward the sunlight. If we knew nothing of plants one would reasonably assume this plant could hold consciousness by alterting its physical position in space for survival. We know this is not the case because we understand why this happens.
Just as a plant can seem conscious growing toward the light are we just seeming conscious not in any single person but collectively as a species.
For instance if you are a baby and in the wild you would not in your first generation know to brush your teeth without someone first telling you that you need too and understanding why.
The trials and errors of generations of humans have moulded a survival guide to live longer and how to achieve marvels like travelling to space and taking pictures of black holes.
But is this really our intelligence or borrowed from a rapid spread of information to grow stronger and live longer for as long as possible. Free will hasn't needed to exist for humanity to reach its growth or collective intelligence, I pose in the instance we make a decision it is always the decision you are going to make regardless. I mean it's all good saying I choose A and then when you have picked A, saying "but I could of chose B" so I have free will but thats not a legitimate argument because you didn't chose B and you can not rewind time to do it again to compare them both.
Whether you chose right (reward) or wrong (punishment) the collective hurd learns from your achievement or failure and reiterate it to the next generation. So do I have any free will at all or does it just ultimately to me as an individual it doesn't matter but regardless of my choice everyone will learn from it?