I'm primarily looking for guidance on how to continue debugging this problem if no answer is readily available.
I am on the latest Dell XPS 13 developer edition with the 10th generation Intel processor. I am attempting to boot an Elementary OS Juno live USB. After selecting the USB as a boot device I get to the grub prompt and select "Try elementary is before installing" this then hangs at a blank screen (no cursor so is not similar to the nomodeset problems of yore).
The computer does not advance past this screen. I have tried editting the boot entry to remove quiet and nosllash and set the gfx mode to text. All permutations have not had any effect. The same USB I'm booting from does boot instantly on my Thinkpad T480.
I am using UEFI boot with secure boot disabled. There is no BIOS or legacy boot option available on this system.