But I thought those are only for steam keys? That's always been what devs found out when trying to vary their prices on storefronts: Sell the game standalone, Valve sleeps. Sell a steam key or use the steam backend, real shit.

Epic is good at making it sound like it applies to sales in general though, while technically not being wrong from how they word it: You do sign a price parity obligation, yes. And it does prevent you from offering lower prices on other stores. For, well, steam keys. But they're not mentioning that last part as that makes it sound like Epic just sells stuff for the same end-user price because they can.