Satan have evil intentions despite knowing what was better for himself. was the most loved angel too meaning he had life extraordinarily well in heaven.I'd assume evil actions lead to self destruction, or at least pain, regrets, mental, maybe physical suffering.
Folks in heaven would have no desire to commit these acts. Why would they act against their own best interest.
You have free will to beat yourself in the head with a hammer. If you have no desire to do these, does it mean you have no free will?
Free will is being able to do what you want to do. In heaven no one would want to do evil acts.