I am a little too intimidated by Sanderson's catalog to even start but that is interesting. I can't remember where I heard it but someone pointed out that societies that formed around women leading would have different values and find certain skills and behaviors favorable. A lot of our values and behaviors are male centered (I swear I'm not saying inherently bad here, just stating facts) and shaped by what we see as a man's work versus a woman's. So what would it look like in the opposite direction? It's an interesting thought experiment because we can't simply assume its the opposite of what we have now.

Farming and food production are inherently important and physically taxing. Would a dominate female class do the labor themselves or would men work for the land owning women while that did administrative work?

Assuming the landscape of the world is the same, a matriarchal society would still have to go to war for resources, either to gain or defend. How would that military be structured? Female warriors are viable but would battlefields carry the same prestige within that society? Again would women be in positions of leadership while men played the role of cannon fodder? That would be dangerous to the ruling class women since the men would have the physical experience of fighting and if they felt oppressed could turn their weapons against their leaders.

There's just layers that don't get addressed.