There is no chicken and egg. Apple has tens of billions of dollars. If they wanted to support games it could be done really quickly. They straight up are anti-gaming unless it is of the exploitative micro-transaction mobile kind where they can reap that store tax.
Yeah, it's pretty sad to see them pimping the likes of Genshin Impact. Even among the people who do play and enjoy it, I've yet to meet anyone who will defend it as anything other than a Breath of the Wild ripoff with a slot machine-shaped tumor attached to it's hip.
It's a chicken and egg problem, although Apple Arcade is a good approach to try and bridge that gap.