How does that relate with the experience of decision making? That's a complete unknown. But the simplest explanation is that free will is simple, once we define it as "the experience of making a decision" instead of the traditional, nonsensical definition of "the act of making a decision that is fundamentally independent from prior events". Usually free will is framed as "choice vs slavery", which is a useless definition because choices can't be made in a vacuum.
In other words, of course we have free will: We feel like we have free will, and free will is simply the feeling of having free will. Conscious decisions (if those even exist!) are physical processes just like everything else in the universe.
