While it doesn't directly address Amazon SSM or Azure Inventory Agents as sources, the following article provides a general comparison of the FlexNet inventory agent to other sources of inventory which may help: The big choice for gathering inventory: the FlexNet inventory agent or tool "XYZ"?
(Did my reply solve the question? Click "ACCEPT AS SOLUTION" to help others find answers faster. Liked something? Click "KUDO". Anything expressed here is my own view and not necessarily that of my employer, Flexera.)
