If you want to play AAA games that was made and designed to play with a controller in mind, don't spend $1k to 2k just to upgrade a tablet, buy a PS5 or an Xbox series X instead. Way less money spent, all the games you want with better game related features and better futur proof with update support and you're guaranteed your games will still work in the next years to come. It's a total different story with the mobile market. I still not forgiving Apple and 2k games from unsupported Bioshock making the game unplayable one year later because iOS update broke the game and devs didn't want to update it anymore.
And that's the whole problem with mac gaming, especially with games sold on the App store. Even on Macs, I have many games I bought on the App store that I can't play anymore nowadays, and these games are not that old and should still works when you compare console games and even PC games that Windows can run a 15 years old game without not so much issues sometimes.
So for me, Apple will have to work hard to convince me to buy anything over $10 in term of games on the App store. From now on, its Steam all the way for my Mac, bootcamp for PC games, consoles for all the rest.