Yep
From a realistic standpoint, best outcome will be a federation of states. Syria remaining intact.
Now will that happen? Only God knows.
Problem is now & later.
Now, end the fighting without Turkey killing Kurds.
Later, keeping invasion out till dust settles.
Initially I thought US and Russia might cooperate enough to make that work. Now? Not sure. Turkey is the problem. Has been since the first. Erdogan is an Islamist. He doesn’t hide it. He supported ISIS and still does not act to end them, only plays about it.