Will Ubuntu run fine in EFI mode on a Macbook that needs to run Windows 10 in legacy (BIOS) mode?

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I’m wondering about potential issues with installing Ubuntu in EFI mode on a mid-2012 Macbook Air. From what I could gather from this page earlier Macbooks aren’t UEFI compliant:

2012 and older models only support legacy BIOS Mode. There is varying degree of ‘EFI’ness in these, but they are not UEFI-compliant.
Late 2013-2014 models support both EFI and BIOS, and default is BIOS. These are the first models which are UEFI.
2015 and later models only support EFI and UEFI-compliant.

Is this accurate? If not, how come Windows 10 still needs to run in legacy mode (see below)?
Quick facts about this machine:

macOS Mojave (i.e. APFS)
GPT partitioned drive (a Samsung SSD)
Windows 10 64-bit installed through BootCamp Assistant
Windows 10 runs in Bios/legacy mode judging from that…

Windows sees the drive as MBR
Windows only installs to MBR drives in legacy mode
The drive has a hybrid MBR

I’m trying to determine whether it’s worth creating a GPT-only partition for Ubuntu and whether to install it in EFI or legacy mode (assuming I have a choice between the two).

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Marisa

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