Came across a really helpful article this week, in regards to checking the status of your LAPS Deployment.
It’s a PowerShell script you can run that breaks down how many device are enrolled , not enrolled or have not contacted Active Directory for a prolonged period to update the Administrator password.
The Report outputs the below:
You can get the script from https://blogs.technet.microsoft.com/askpfeplat/2018/06/04/how-healthy-is-your-laps-environment/