Great, you can keep playing your old ass game at low frame rates. Enjoy your power savings... the game still runs like crap and the GPU still isn't that great.
I don't think I have worried about game frame rate since the days of Quake 1. I set my graphics settings to "Medium" and then spend the rest of my time actually enjoying my old ass games.
Better strategy is to make sure the door isn't closed on gaming for those that want to use their expensive Macs to occasionally play (protect the downside), rather than swing the door open enthusiastically for gamers to rush in.
Re: worrying about fun vs tinkering, I'm reminded of the 4 quadrants of hobbies. What we see on forums are generally gamers interested in gear & discussing, not 'doing the hobby'. https://brooker.co.za/blog/2023/04/20/hobbies.html