FSR 4 via optiscaler works in most games even nvidia tech demos like alan wake 2, cyberpunk, black myth wukong etc.
Daniel Owen even made a video about it.
https://www.youtube.com/watch?v=vEcESQhJVfE

The common man doesn't have to pay the ngreedia tax anymore to get an upscaler with good image quality. RDNA 4 chads will be modding FSR 4 into all your sponsored nvidia exclusive games and there is nothing you can do about it nvidiot.

Open source modding won. RDNA 4 won. Radeon won. AMD won. Jack Huynh
won. Lisa Su won. And most importantly gamers won.

cope below