Epic vs: Steam is like Coke and Pepsi wars in the 80s.
Except that right now Epic's offering is very half-assed. I have no issue with more stores. On the contrary, I'm a GOG head and buy my games there preferentially, only going to Steam if I can't get them there. However what I want in competition to Steam is something that is better. A better interface, better (or at least as good) features, a well curated collection, etc. Right now, the Epic Store has none of that. All they have is bribing developers to not release their game on other stores... which of course means less competition.
It's not a case of "two options that are very similar, just minor differences that one person might prefer over another," it is a case of Epic having a very half baked product and trying to push it by throwing money at devs.