I have a problem with the Github Actions documentation. There is a lot of it, but it feels as though it was written from a "product" perspective, to explain how

I have a problem with the Github Actions documentation. There is a lot of it, but it feels as though it was written from a "product" perspective, to explain how to use the product. None of it usefully explains how GHA works from the ground up, in a way that would help me solve problems I encounter.