It's about the same. Divorce is the paper. All the terms and conditions; debts and custody are all in the Sep Agreement.

So the Sep is "functionally" how the divorce will be. Divorce is government sign off.

Sounds the same.
SA is legal contract on how the divorce will happen IF either actually petitions for the Crown to sign off.

So FULL firewalling/protection/custody must be in the Sep Agreement.

Tougher to sleep without it. I need to know all the legal details so I know my starting point in my "next life"