This is not true. I have an Macbook Pro 16 Inch M1 Max and I play a ton of games. Both Dota 2 and World of Warcraft runs without issues, you just need to do some tweaking with the settings and also framerate cap the game so you don't end up thermal throttling which introduces stuttering.
I can't believe these M1s throttle! My 2012 era computers never throttled because apparently apple had better thermals back then. I had a more recent intel mac and I sent it back because of the throttling, biding my time for M1s to come down in price but now I see that won't be worth it.
