Predestination is a different topic.
In all of the dispensations, some degree of predestination occurred. Volition(free will) is an institution established by God for all humans, believers and unbelievers alike. Both can enjoy the fruits of that institution, provided they respect legitimate authority. Along with volition, comes volitional responsibility.
That’s why we are held accountable at the Great White Throne Judgment and the bema seat judgment. It’s also why we aren’t condemned for sin at those judgments. Christ has already been judged for human sin. Good and evil have not been so resolved.
It’s all part of the angelic conflict and His Provision for all His Creation.
No, I'm thinking in terms of different dispensations. We know God's Grace is the same throughout all dispensations, but that doesn't mean God only interacts with his creation in one way all the time.