Just make sure you have the right hardware, I guess. Lots of games are hardly worth playing without a discreet GPU, so why not games that won't run unless the machine has an x86 CPU?
In any case, different games place different demands on CPUs and GPUs, with many not requiring that much CPU power - so possibly more tolerant of x86 emulation on ARM. Possibly of note is that many MacOS Steam games are built with Metal, the same graphics API used in iOS on Apple's own silicon, includibg the usual big names:
https://en.m.wikipedia.org/wiki/Metal_(API)
Biting the hand that feeds IT
