as @swaaye has commented already, not it's easier than ever. On my PC I have a Windows 11 2TB partition on a NVMe just for gaming, and another 1TB SSD W11 partition for general and typical OS usage.I've been saying this for years.
Tweaking the gaming partition is simpler -a debloat utility and HDR calibration with that Microsoft tool...-, drivers and you are done.
Still, Tom Petersen from Intel mentioned in a DF interview that their idea is that drivers take care of everything and tell the player things like "your game is CPU limited", and adjust the settings automatically to that. I'd be certainly grateful, I like to tweak and open systems, but sometimes it can become tiresome. My future PC in 3-4 years is going to be an Intel -or Dell (Intel based) or similar- NUC, that I am sure of.