Why are people still just blatantly wrong about the Epic store? It is NOT Windows only.
So yeah, the store works - but that doesn't mean the "Linux games" work, or work fully, with network.
If the latter, I agree but no storefront actually meets that standard right now. Valve happily sells stuff on Steam that barely works on Windows and before the new refund policies they'd perma-ban your account if you tried to refund a broken game.