All assets are compatible with Unreal Engine 5.2.1. They might not work with previous version as is. These are the materials, material functions & settings I have used in the past. They are a good starting point to understand and work with material and Unreal.
All files are available on GitHub with installation instructions: https://github.com/Gil-1/UERenderTools

A few base materials usefull at the start of a project. The Uber Shader is detailed here: https://www.artstation.com/artwork/qeExky