I am running it on an M1 MacBook Air, with 8 GPU cores... PS4 controller via bluetooth, of course.Depending on settings and where I am in the game, it runs anywhere from 6 FPS* to 60-ish FPS.
Generally, I run it full screen at ??x800 (whatever the next step up from 720p is), with the Quality set to "High" (the middle setting). What also helps is reducing the number of objects down from Maximum, in the ellipsis section of the system settings. I tend to keep screwing with the settings, hoping to get an extra bump.
It doesn't run like a turd, but you definitely need to lower your expectations with regards to shadows, bump mapping, and other graphics prettiness.
As a side note, FFXIV for MacOS is little more than the Windows x64 version in a WINE wrapper. It was ported by TransGaming using their Cider fork of WINE. Once TG died, the project was taken over by Codeweavers, using their CrossOver package. (See https://www.codeweavers.com/about/news/press/20190628 )
I do not expect Squeenix to abandon the Mac client, nor do I expect them to embrace the M1. Although Windows 10 and 11 have ARM variants, that hardware tends to be tablets and ultrabooks. Not exactly a target market for gaming. ...and that would be the greater business need for an ARM-native version.
* Six FPS? Yes. I used AirPlay to connect it to my AppleTV to run on a native 4K television. I do not recommend.![]()