Show history of frequent users of a particular application

We’re re-deploying an application for DUO for our VPN that we’ve reconfigured. I’d like to search all the previous logins and find out who are our most “frequent flyers”… to have them test the new application. Is there a way to do this directly from reports or can I download the information for analysis? Basically, I need a name and a number of logins during a particular time period.
TIA for any advice.

There isn’t a canned view of frequent users, but you can go to Reports > Authentication Log, set the “Time Range” to a period that makes sense to you, export the results to CSV, and sort/filter it by username to find your pilot users.

Excellent…many thanks…this is exactly what I need. Thanks! – L