Just like 8 deluxe, world has a hidden LAN play option and you access it the same way as 8 deluxe. Highlight wireless play then hold L and R and click the left stick to turn it to LAN play.
The adantage of LAN play is you can connect up to 24 switch 2s together instead of the limited 8 for wireless play. In handheld mode you can achieve WLAN for 24 people by turning your phone into a portable hotspot and having all participants connect to the phone hotspot.
by Howwy23