Update...I tried the efi=no-rs section in the UEFI troubleshooting guide again
because I didn't try it from scratch and I got it to boot! The boot option
shows up under UEFI but it requires Legacy Options ROMs to still be enabled in
the BIOS.
Steps to install Qubes:
1. BIOS: Enable Legacy
I'm having the same issue.
I haven't been able to boot the 4.0.1 installation with UEFI on my Dell XPS 15
9570 w/ 4k/NVMe/1050Ti. It doesn't look like anyone else has either. A screen
briefly pops up saying Xen EFI and then it reboots. I am able to complete the
installation booting from