I was replying to that poster saying that there would be no reason for the game to run poorly.
I'm not saying it
will run poorly, but it could. No API can do all the optimizations automatically, however advanced it is.
Death Stranding also uses the latest Metal Features, yet an M1 Max does not run it more smoothly than a PC with an RTX 2060.
The commenter says it's "respectable", but it's pretty disappointing IMO. The M1 MAX has much higher amount of video memory and 60% more TFLOPS. It should perform much better.