The Context [1]
The Problem
This beta isn’t accepting any new testers right now.
Why are you joining the TestFlight? It’s available on the App Store.
@redstrate, because TestFlight exists to provide pre-release versions. It’s equivalent to the Google Play Store’s “Beta” programmes. It can also provide what the Play Store refers to as “Pre-release” applications, but I have no reason to believe that Connect’s solely does so, since the cited README
mentions that its provides “testing” versions.
I’ve since ascertained that, because Discord’s says “Full”, whereas this says “Unavailable”, @redstrate was probably correct that it solely existed to provide pre-[App Store] release versions of the application, rather than beta versions: