You find that Symantec Endpoint Protection Manager (SEPM) does not offer a report that shows which clients have the Application Hardening feature installed and would like to know how such a list could be obtained otherwise.
SEPM 14 RU1 or higher
As Application Hardening can only be activated and configured when you enroll the SEPM in the cloud, the decision was made not to include such a report in the on-premises version of SEPM and only make it available in the Cloud Console instead. In Q4 2018, Symantec added a custom reporting engine to the Cloud Console that provides more flexibility, adding the possibility to report on specific client features.