XPS 9560 - UEFI boot drive not detected

crossposting from tonymacx86 in order to maximise visibility, please remove if that is not allowed

Hi. I've been trying to install macOS on my Dell XPS 15 9560 (7700hq, 1050, 16GB, 512GB, FHD, 97Wh) for some time now, and I always encounter the same issue: my UEFI boot drive is not detected, no matter how it was created. I've tried with Sierra, High Sierra, Mojave; I've tried USB 2.0 and 3.0 peripherals; I've tried different ports; I've followed different boot drive creation guides; I've reset the BIOS to factory settings; I've updated the BIOS to the version used in each guide I've tried to follow. But that computer just doesn't want to detect a hackintosh boot drive; it works fine with Linux UEFI drives though. And the worst thing is, I can use these drives with other computers, both laptops and desktops. Also, the drives show up as legacy devices if I enable the option, but of course nothing happens if I try to boot from them, as they are indeed UEFI devices. They show up as UEFI on other systems.

So, I'm quite certain the issue is with the computer itself, but I can't seem to find it. Any help is welcome.

submitted by /u/InertiaSelling
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