In case of missing textures or file path issues, keep your 3D model file in the same main folder as the included Textures folder. You can also use Blender's Find Missing Files feature (File > External Data > Find Missing Files) and point it to the provided Textures directory

Note: Since several PBR textures are shared across materials to optimize VRAM, texture files are systematically named based on their shade value (e.g., 90_grey represents a near-black shade, which might be mapped to roughness nodes for shiny surfaces as well as metallic nodes for near non-metallic surfaces).