I have been trying for 3 days to get this to boot. I have tried different USB drives and images, Every combination of Legacy and UEFI settings for usb and boot settings. No luck I keep getting a kernel panic. I am not 100% sure but it looks like it is complaining something about USB in the boot messages.
Right now I just have 1 RX570 in the x16 slot while trying to get it working.