joshkovach it still says it's only testable on iOS.
That is weird. I just yesterday updated the v2.0.0 Beta to Build 48 on both a M1 MacBook Pro and an M1 Mac Studio Ultra, both running Monterey 12.6.
I notice that the ASIAIR app is listed as "iOS Only Apps" in the left hand panel (where other Beta apps will be listed) of your TestFlight window. With mine it says simply "Apps":
You might try re-downloading (or updating) the TestFlight app on the Mac (from the App Store.app on the Mac) to see if it does anything.
Chen