The model and texture set are suitable for scenes in UE5, Unity, etc.
Modeling and texturing process (playlist), where you can see all the details:
https://www.youtube.com/watch?v=v3DtgkyKzb4&list=PL8zRhaiDATYoLbLkdyCPtXt1wH0HKM5JE 
Who works in a V-Ray version lower than 3.1 be careful, there is a Microfaset GTR ( GGX) in the materials in the BRDF section, if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward – which is preferable for you