Textures are separated into folders.
regardless of your software, all base color maps are in the color variation folder
If you are using unreal or unity you can find the packed textures you need in the folder off the same name.
(as unity packs metallic and smoothness into a grayscale + alpha texture, and unreal packs metallic, roughness and AO into an R+G+B map)
The generic software folder doesn't pack any of the maps together and contains normal maps for both opengl and directX, be sure to select the right one for your software.
If you find any issues with this asset, have suggestions, or need anything feel free to contact me.
The mesh was made in a right handed / y-up coordinate system, keep this in mind when importing into left handed / z-up software.