If you played Fortnite on PS4 at least once, you can't use the same Epic Account on other systems, having to start from zero from Switch for example. I figured you guys might want to know, sorry if doesn't fit here.
https://www.theverge.com/2018/6/12/...-switch-ps4-block-accounts-cross-play-e3-2018
https://www.theverge.com/2018/6/12/...-switch-ps4-block-accounts-cross-play-e3-2018