If I play Fortnite games with Handy then will there also play ps4 and other am.or only Handy users?

If I play Fortnite games with Handy then will there also play ps4 and other am. Or only Handy users?

All users who are your friends are shown, not just cell phone players.

Only others who also play cell phones, I think.

Can be set, but only standardizes other mobile phones, tablets, etc. Users

So when you play on mobile you play against mobile and switch players