I think the key problem Apple has, as others have mentioned, is the quality of titles available via Apple Arcade.
The truth is Apple's hardware is more than capable of running triple A games (with a possible caveat of storage limitations), but the reality is the lack of games and this won't be fixed by supporting cloud gaming.
The truth is Apple's hardware is more than capable of running triple A games (with a possible caveat of storage limitations), but the reality is the lack of games and this won't be fixed by supporting cloud gaming.