This seems like a separate question. Having the power to choose doesn't mean you have every conceivable option in mind, nor that you have the power to exercise every choice, nor even that you like any of the choices.
Did the first particles that ejected from the big bang have free will?
This sounds much too broad - I can't tell what it means. The things I listed are the normal constraints around how we define free will:
> > doesn't mean you have every conceivable option in mind
I think this is what you were exploring in your reply.
> > nor that you have the power to exercise every choice
I might choose to fly, but that doesn't mean that that is what will happen
> > nor even that you like any of the choices
I might be choosing between allowing myself to be robbed and risking being shot, but I am choosing within my horrible options.
> Did the first particles that ejected from the big bang have free will?
I don't think anyone's claiming they did, no.
This seems to be an idiosyncratic definition of free will.