Epic will still be dissatisfied. They were dissatisfied when they had their android store. It didn’t turn out like they thought. They thought they were gonna be making bank but most people did not flock to their store.
You are in fact literally required to purchase an Apple or Google phone to participate in an OECD economy. Your employer will require it, your government will require it. Increasingly, your banks and doctors will require it. Unless you're telling people to live off the grid? But maybe we can have something between the two extremes of living in a fucking jungle or submitting to an enforced duopoly wherein two companies control what billions of people can publish and take a 30% cut from it all? No? That too unreasonable for you?