How can I transfer my worlds from the mobile device to my xbox console? I'm signed in with my Microsoft account on both devices. Do I have to save the worlds to a specific location (external, etc.)?
No, as far as I don't know, you will probably not go and if there's a way it will take forever you need programs, etc.
This is not possible from a mobile device. At most from a Playstation to a USB stick, I don't know whether that is possible with the Xbox.
As far as I know, the programs are not compatible with each other.
If I upload the world to realms and then open it on the xbox series s?