Epic Games accounts should not be proprietary to a single platform unless decided by Epic Games and is communicated clearly to the user. Currently if you sign in on PS4 or Switch with your Epic Games account to play Fortnite--you cannot use your account on another platform.  This means if you play Fornite on a Playstation 4 a single time, you cannot use your account on Switch or Xbox (and vice versa).  You lose all rewards and progress from previous seasons that are no longer available. This can be devastating to any gamer.  Please allow use of Epic Games accounts on all platforms.