If you want stability, Debian Stable is the way to go (Servers, mission critical tasks). Even Debian Sid works great on my Legion Go.

I recommend Testing or Sid for desktops.

If you are using this as a server, I recommend Debian. If GRUB displayes, try text only/videosafe.

If this image doesn’t work, try x86 version.

I’m pretty sure Verizon locks the bootloader on their phones. I had a S10e and I wasn’t able to unlock it.

It may be the same for you.