Aside: I like GotQuestions .... o.k., that's is one of the definitions that I am aware of that goes with Free Will (not the most popular one, but close to the one I personally use .... My definition of Free Will being: we do what we desire most strongly at the time.I like this definition:
“the capacity of a conscious mind to make decisions and choices without any external constraints or coercion.”
https://www.gotquestions.org/does-God-have-free-will.html
I am in agreement with this.As such, God's will is not constrained and truly free but humans' will has always been constrained. Therefore, any idea of human "free" will must include the fact that it isn't truly free, but could be said to be free within constraints. Unbelievers are constrained by their sinful nature and the devil. Perhaps believers are more free, as we can choose to sin or not, but we still have significant influence exerted on us by the flesh, temptation, the devil, and the Holy Spirit.
But, to the crux of the matter. What/who is the source of our will? Who/what programmed/created our will to do X or Y in a given situation?