Power BI Usage Metrics Report - UserNames

RichFlorida  Hey ,
You can use following steps.

STep 1 - Try using azure active directory(AAD) data's graph api to user data like first name ,last name and email id

step 2 - check with your data team if they have any employee table in sql or cloud data base so you can use it power bi desktop and join it based on email/userID to get required data

or  You can create a table viz in power bi and the export your data in excel and now you can extract first name and last name from the same excel file in power bi desktop.

Thanks

Harish KM

Please accept this as a solution if this solves your problem and give kudos as well.