Epic Games Store, is Epic trying to create a platform to challenge the current monopoly help by Value with Steam.
Epic has garnered a bit of backlash from many gamers as they have been using much of the money gained from Fortnite to basically buy exclusivity from developers to stop Steam getting some of the biggest games, or delay them in cases up to and exceeding a year.
I personally don’t like the platform that much, compared to steam it leaves much to be desired. It took steam years to get all their features up and running and Epic launched last year without even a working checkout system. It is a bit better now, but still has a long way to go.