There’s a new (April 2021) Dynamics 365 Licensing Brief.
Its intent is to answer some questions, address some complex scenarios, and provide product information that may not exist in other documentation.
If you’ve got a reasonably good knowledge of Dynamics 365 licensing then it’s probably worth a read from start to end (it’s only 8 pages) to see if there’s any new information for you.
Find this Licensing Brief here: https://bit.ly/3ukog2M.