Got a Yoga 7X - would like to try dual-booting it -

- but would like a good starting point and research tells me you are the folks to talk to. Have done dual-boots with ubunto on regular PCs, but this is my first Aarm64 architecture. Any hints, or starting points you could aim me at? If I could get the basics going, then the rest in time would be fine. But I need a solid starting point and if you contain a disc utility to repartition the drive in the install?
Thank you for any help
EZ