Even just from a biological perspective the idea of free will is iffy.

Any decision you make today is influenced by a chain of decisions going back to the beginning of all decision making. Everything from what you had for breakfast to what your great grandfather had for breakfast to what tiktaalik had for breakfast has affected your own individual biology and internal chemistry to lead you to any choice you're about to make. Even locally there's so much going on in our bodies that we're not aware of and don't have control over and which are influenced by things we don't have control over that directs our daily lives in profound and complex ways.

The eminent Robert Sapolsky is able to put this idea into better terms than I am if anyone wants to peek into this area further.