Fortnite will have built-in voice chat support on the Switch! : r/NintendoSwitch
How to Voice Chat on the Nintendo Switch: 15 Steps (with Pictures)
Switch games are finally getting proper voice chat thanks to Vivox - The Verge
How to Use Voice Chat On Nintendo Switch to Chat With Friends | USgamer
Here's How Voice Chat Works In Fortnite On Nintendo Switch - Nintendo Life
Fortnite' for Switch thankfully includes native voice chat | Engadget
Voice Chat not working on Fortnite(Switch): Parental Controls Solution: "Communication with others" must be set to "Not Restricted" for voice chat to work. - Nintendo Switch Forum - Page 1
Fortnite on Switch | How to Voice Chat - YouTube
Fortnite Voice Chat on Nintendo Switch: How to use it - DigiStatement