Interestingly, I don't even think that the Epic Game Store was a vanity project. It was probably a good idea, they had a successful product and could build up their store out of it. Basically what Valve did originally.

But instead of focusing, you know, in making their story desirable to use, they focused on shit like exclusives. And for that, they should fail.

I prefer GoG over Steam, even while I am super grateful for Steam making gaming on Linux possible. And GoG didn't need to rely on exclusives for this.