Shadowbringers change to 64-bit and the Mac version

[kikix12]

And that's the question that only Square can answer, given it's the "mac version" that Square puts out and licenses separately from the Windows version.

Not really, no. The wrapper is made by TransGaming, not Square Enix. It's the same deal as with anti-cheat stuff like Denuvo and such. They just license a third-party tool and implement it into their code.

Or at least it did use that when released. Maybe they changed it, but it'll still most likely not be made by Square Enix. There is just no business reason for that as developing their own wrapper would cost more than just making a native version which is strictly superior to any middleware tool.