If a game controller mentions that it's compatible with iOS, is it likely that it's also compatible with the Apple TV?
Tons of controllers are iOS compatible, but only a subset of them claim to be compatible with Apple TV. As the Apple TV's tvOS and iOS share many similarities (tvOS is a modified version of iOS), and many games work on both platforms, it seems reasonable that the game controllers would be universal.
I understand that even if it is likely that controllers are universally compatible, individual controllers may not be. Really, I'm just wondering/hoping that Apple TV compatibility is something left off of marketing materials because it's a much less popular platform than iOS, but the compatibility is actually there.