Hi, over the years I have tried many havs integrations, everything from cards to integrations. My dashboards are living its own life and I only use some cards. Is there an easy way to check which hacs cards I am actually using in dashboards so that I can uninstall the rest?
On the integration side, check which ones are currently installed. This helps you identify which integration is active and which ones can be removed.
For custom cards, remove all related entries from HACS, go to you dashboards, and then reinstall only the required ones.
I use this one, it seems to work but I donot know what it does not detect 
loryanstrant/HA-CustomComponentMonitor: Reports on whether you are using your Home Assistant custom components