Money... lots and lots of money.
I bought the recent Apple TV that launched earlier this year. It is a good device and has enough power. The issue is the device has no cooling and when pushing graphic intense game the heat makes the device throttle. If they do release a new apple box with more power they have to find a way too cool it.The only viable potential new player in the console gaming space is Apple due to their endless money and sky high brand adoration. I could see them carve out a market for themselves in gaming if they approach it correctly. They certainly have a global fanbase for it.
Rumors are however that the next Apple TV box refresh for 2024 is going to have either an A17 PRO or new M series chip which will allow PS4/XBOX One style visuals and performance. Apple has also stated that they are “serious” about entering the gaming market moving forward.
It remains to be seen.
Google already tried and failed.
you could just as easily publish those good games on competitor platforms so uh.... yeahGood games