It is incredibly difficult to find documentation on tables, lists, queries, and fields. Particularly for the non-developers who want to build Power BI (or similar) reports. CTRL-ALT-F1 is incredibly helpful, but not inclusive. It would also be helpful to know if a field is a “system” field and therefore not available on reports. 

Some of the lists are so similarly named, that it can be difficult to understand which to use. I’ve noticed that with fields too. Many fields are named the same but contain different data in related tables.