How do Fortnite streamers turn on Fortnite music in stream so that they don't hear it themselves, or do they also hear the music themselves while playing?

How do Fortnite streamers turn on Fortnite music in stream so that they do not hear it themselves, or do they also hear the music while gambling themselves?!

So I like to listen to music while gambling.

You will certainly hear them yourself

Of course they hear the music too

Fortnite? If so, how do you do it with sounds?

How do you hear ingame steps etc.

I don't play Fortnite, but you don't have to overdo it with the volume

Then listen to both

You can set it via voicemeter, but you will not hear the other music from you

Where can i find this?