Please confirm we have one Anthos customized OS please confirm UIM Agent is compatible or not?
UIM 20.3.3
Anthos is not listed in the compatibility matrix so it is not officially supported nor tested, but... Ubuntu OS is supported.
UIM Compatibility Matrix
https://techdocs.broadcom.com/us/en/ca-enterprise-software/it-operations-management/unified-infrastructure-management/20-3/installing/product-compatibility/ca-uim-compatibility-matrix.html
Ubuntu 18.04 x86_64 LTS is supported. Minor version .5 should not matter.