There’s a new (October 2020) Microsoft Licensing Brief to help you to answer questions around Windows 10 Qualifying Operating Systems.
Note though, that it’s not yet updated for the changes that were made to page 42 of the November 2020 Product Terms whereby Windows 10 Home licences are now qualifying licences for academic customers buying through CSP.
Find this document here: https://bit.ly/38xPnPR.