Windows Cals are not installed or tracked anywhere except via the documentation that came with your purchase.
You can use the Remote Desktop Licensing Manager tool to create reports to track the RDS Per User CALs that have been issued by a Remote Desktop license server.
https://learn.microsoft.com/en-us/windows-server/remote/remote-desktop-services/rds-track-cals
--please don't forget to Accept as answer if the reply is helpful--