To reproduce:
# Create a new project using empty URP template;
# Import URP samples into the project ( Window > Package Manager > Universal RP > Samples > Import);
# Build and run "PaintSplat" , "BlobShadow" or "ProxyLighting" scenes. 

Expected results: Decals are rendered correctly

Actual result: Decals shader graph is not rendered

Tested and reproduced on: Mac Standalone and Windows Standalone builds

Reproducible in:
2022.2.17f1, 2022.2.18f1, 2023.1.0b15