UnityCACAO-HDRP17/com.unity.render-pipelines.high-definition/Documentation~/snippets/shader-properties/autodesk-interactive/normal-map.md

NormalMap The texture that defines the normal map for this material, in tangent space. This is similar to the one in the Standard Shader in the Built-in Render Pipeline.
If you disable UseNormalMap, HDRP ignores this property.