I've no interest in Galaxy's sprawling list of every game I own on every store but if we really can install Epic games directly through GOG's client, I'm maybe interested in that. Until I have a go myself, see how all the bits integrate, I'm not sure quite how excited I should be by this. Though since this is a substore GOG are running, it'll offer GOG's 30-day refund policy rather than Epic's 14-day one. And GOG will get a cut too.