Forgive me if I am ignorant, O knower of the Dark Pantheon, but as I have come to know this Pantheon, I have heard whispers of one who bears the twin appellations of Malal and Malice. I know of the Great Game and the eternal rivalries of Tzeentch, Slaanesh, Nurgle, and Khorne, and of the myriad domains and complexities of the Octed Path. So, I have come to wonder wherein Malal/Malice fits? I know he represents Anarchy and Terror and despises the other gods. So does he fit in the Formless Wastes?
There is no shame in ignorance as long as you are willing to enlighten yourself. It is true that there are some cults who have worshipped and still worship Malal, and yes he is -or more precisely was- the embodiment of anarchy. Chaos fighting against Chaos itself if you wish. Nowadays the Four gained so much power that Malal can only exist thanks to the small cults who still worship him. In my honest opinion all worshippers of Chaos shall decide themselves which member of the Pantheon to follow, be it a ”stronger" or“weaker" god.
In short; Malal is the embodiment of anarchy in the sense of the other gods fighting among themselves. (as i see it atleast)
I hope you found answer for your question in my words. May the Dark Gods watch over you.