If the items on the dashboard look happy and not greyed-out, the item is configured correctly. If the item does not look happy and is greyed-out, use the menu on the left to see what is not configured corectly.
https://github.com/thalpius/Microsoft-Defender-for-Identity-Configuration-Checker
Microsoft Defender for Identity detection relies on specific Windows Event log entries to enhance some detections and provide additional information on who performed specific actions such as NTLM logons, security group modifications, and similar events.
https://docs.microsoft.com/en-us/defender-for-identity/configure-windows-event-collection