As of when? My M2 (base) MacBook Air is not the fastest ARM computer in the world, but it's been able to play Cyberpunk since what, May? June? Whenever it came out on Mac. Though, the ARM port of Cyberpunk exists because of the Switch 2. Other ARM platforms just benefit from it.
Watched the first half of the video. The video does mention the M4 Mac mini, and the neat thing about M4 (they're up to M5 now) is that it supports ray tracing natively.
So whether you're on an iPhone, an Android phone, a Switch or Switch 2, a Mac, or a PC running ARM, it's long since past time to retire the notion that ARM means weak. It hasn't for a long time. It's still more power efficient than x86-64. It's a fine platform for browsing and casual work. For AI stuff and high end gaming, you might still want x86-64 for its power throughput, but ARM is getting very punchy for games. The last few generations of iPhone are very good for gaming, at least for rendering games. Jury's still out whether a 6.5" (average) touch panel is the best way to game (I think not). But the CPU/GPU are there. Android is catching up. And of course on the desktop you have more options. More room, better cooling. Macs are leading the charge in desktop ARM, but PC ARM is picking up, too, and Qualcomm is making some impressive hardware there as well.
Note that my M2 MacBook Air gets better performance than his rig. I get around 20-25FPS, but I get no traffic or pedestrians. They made some interesting compromises to make the game work. My M2 Pro Mac mini plays it a little better, but I'd just rather play on Xbox.