Comment by SushiHippie

FWIW with the Java version you can easily create a LAN Server in game, by joining a world and then opening it to LAN.

https://help.minecraft.net/hc/en-us/articles/4410317081741-H...

EDIT: I just realized this works on Bedrock too, but don't know how the support on the Switch is

https://help.minecraft.net/hc/en-us/articles/4410316619533-H...