The easiest way to identify detections that weren't created through the Panther Console is by using the "Created by" column on the Detections page:
Navigate to the Detections page in the Panther Console.
Look for the "Created by" column in the detections table.
Detections created through the Panther Console will display the username of the creator.
Detections created through other methods (CI/CD, bulk uploads, managed Panther updates) will show "Panther" as the creator.