That’s a very interesting subject to explore. If you want my personal opinion on it, free will is an artifact of our limited nature and the resulting inability to consciously perceive how everything fits together in the big picture. It may not necessarily be true, but we also have no other way to live than to assume we can make decisions about what is a good and a bad idea, such as deciding that jumping off a cliff is a very bad idea which will likely result in our death.