Autodesk Customers with Multi-user subscription or Token-flex implementation using Autodesk Network License Manager (NLM) are required to upgrade the Network License Manager to the latest version v11.18.x to support Autodesk 2020 and newer version products on and after April 1st, 2022. ref
To report on Autodesk Network License Manager, Named User or Autodesk Flex usage try our JTB FlexReport.