It doesn’t appear to be added in 2.23 due to it not being shown in the PPV or anywhere else i can see. Please correct me if im wrong.
It’s in 4.23, but still not directly exposed due to it still being pretty expensive. You can enable it with a console variable by typing “ssgi.quality” and using a value between 1 and 4. It defaults to 0 for off, with 1-4 enabling it with different qualities.