How can switch and mobile players play zsm Minecraft?

I would like to play with my friend Minecraft together, but we both do not know how to switch and play cellphone players zsm.

As far as I know, this is not possible across platforms

Since the Better Together Update yet. All editions are now the Bedrock version except the Java version of course.

And how can we play zsm

There are 3 different versions to consider.

1. Java Edition - Classic Minecraft for the PC

2. Bedrock Edition - these include:

Pocket Edition
Windows 10 Edition
Gear VR Edition
Fire TV Edition
Xbox One Edition
Nintendo Switch Edition

and 3. Legacy Console Edition

Xbox 360
PlayStation 3
PlayStation 4
PlayStation Vita
Wii U Edition

Java can only play together with Java, Bedrock only with Bedrock and Legacy Console only with Legacy Console.

So much for this, now specifically to your question:
How to log on to the mobile with XBOX Live is of course I think, on the switch you have to select somewhere that you want to log in with Microsoft. Then you have to go to https://aka.ms/remoteconnect and indicate the code displayed there on the switch (there should I be synonymous explained), then everything should work. Of course you have to connect to XBOX Live to play together. Then you can activate multiplayer when creating a world. You should then be able to join this world via the friends list on the switch / mobile phone.