hwinfo64 v5.79-3390 portable
In the System Summary screen next to my bios, it has "UEFI" in green.
My bios doesn't support UEFI. If I boot into my bios, I have no uefi/legacy options at all anywhere in the settings.
In hwinfo if I go to motherbord > smbios dmi > Bios, I see:
UEFI...