"Don’t do UEFI-native installs to MBR-formatted disks, or BIOS
compatibility installs to GPT-formatted disks (an exception to the
latter is if your disk is, IIRC, 2.2+TB in size, because the MBR
format can’t handle disks that big – if you want to do a BIOS
compatibility install to a disk that big, you’re kinda stuck with
the BIOS+GPT combination, which works but is a bit wonky and
involves the infamous ‘BIOS Boot partition’ you may recall from
Fedora 17).
I haven't been able to find anything infamous about the BIOS Boot
partition but it sounds as if the author had a bad experience at
sometime in the past which has affected their ability to view the
topic objectively.