Let's say that you spin a coin. There is nothing to constrain it to land on heads or tails. It's purely arbitrary. Now imagine that you had the temporary ability to see the future. And you look forward a few minutes and see that the coin landed on heads. Does your knowledge change the fact that it was an arbitrary event? Not at all.
I think it most certainly does change the fact of it being an arbitrary event, into something that is not, or never was, etc, if you had the ability to see it, etc...
It's nonsense to suggest that every coin toss you don't see in the future is arbitrary and every one that you do see is fixed in some way.
All of them are fixed, you just didn't see or look at some of them, etc...
It would be the same with God.
No it would not be the same with God, but only with us, etc...
Just because He knows how a coin toss (or a choice you make) will eventuate doesn't fix that result in advance.
I think it does, etc...
Your trying to treat God as if He is like one of us, etc, going back and/or into the future and only seeing pieces and parts of the future, etc, but it is not like that with God, etc, for He sees and knows all, etc, and did from the very beginning, etc, so your trying to reason Him out with Him being like one of us is very "limited" in scope... (sorry, etc)...
You have to remember that he knows/always knew, etc, "absolutely everything", etc, and always did/does from the very beginning, etc, also to the very ending, and everything and anything at all at any given point in-between, etc...
God Bless!