In this video, we talk about how to set up a material library file, as well as how to use the add-on Material Library VX to quickly access those materials from inside other files!
MATERIAL LIBRARY DOCUMENTATION
https://docs.blender.org/manual/en/dev/addons/materials/material_library.html#:~:text=Material%20Library-,Material%20Library,materials%20and%20textures%20are%20supported.
STORED VIEWS ADD-ON TUTORIAL
https://youtu.be/NwpJajIu_tQ