This is actually a requirement already. To be verified it must have “good” default settings. This means it must run “acceptably” out of the box without configuration. However different people have a different perception versions of what acceptable is. They could say it must have optimal settings - but again what you consider optimal won’t align with what the developer or others consider optimal.

For example IMHO the cyberpunk steam deck preset was rubbish - so it’s basically impossible to get the right balance.

Messing with the screen calibration doesn’t really fix a screen with a low color space, it just trades off what issue the screen has with displaying the intended image. Now it may look better subjectively, but it’s not a magic bullet, it’s physically incapable of rendering the same image.