I don’t disagree with you, but it seems you’ve missed the point that I was trying to make. Yes, sure, the future has been predetermined in a deterministic universe. But if no person in that universe can ever figure out what that future is going to be, is there any practical distinction? To any entity within the universe, the future is completely unknown - the only thing that can be said for sure is that there is going to be a future. That is what I mean when I say that there can exist a practical free will in a deterministic universe

In my eyes, any person who would feel dread over whether or not free will exists in a deterministic universe is splitting hairs over a thought experiment where all outcomes are practically equivalent