The new M1 chips, for example, are very strict in which games it runs others might run poorly or heat the CPU to throttle, making the experience less than pleasant.
Of course, this creates a slight dilemma for the developers, do they want to port their games to the Mac, which would require some serious work and updates as time goes on. Apple disposes of this inequality by making all their machines similar so that applications can run uniformly through all their products. While some PCs struggle to run the latest games at 30FPS, others run the newest titles on 4k and churn out a stable 60. While PC users get a choice of what kind of specs they’d like, whether they want a four-core CPU or a sixty-four one is entirely the users choice.
It’s not controversial to say that Macs don’t excel at gaming they aren’t built around that.