When Metro Exodus was made an Epic Store exclusive just two weeks before its launch, Valve added fuel to the fire by appending a note to the game’s Steam page that called the move “unfair to Steam customers.” A Valve developer has told Kotaku that it wasn’t expecting the vitriolic reaction that followed.
Source: Kotaku – ‘It Wasn’t Meant To Be This Lightning Rod’: Valve Developer Looks Back At Company’s Epic Store Exclusivity Comments