>>993855
>No gamedev does your nonsense
How disconnected from reality are you?
https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@12.0/manual/Mask-Map-and-Detail-Map.html#MaskMap
Even Unity's default HDRP Lit shader use this kind of technique. Hard to make more "yes, the industry casually does it" than that.