Hi @SCB21,
Yes AEP does provide an audience overlap report based on Profiles and Segments. Please check below links for more details:
a. Audience Overlap Report for Profiles: https://experienceleague.adobe.com/docs/experience-platform/dashboards/guides/profiles.html?lang=en#...
b. Audience Overlap Report for Segments: https://experienceleague.adobe.com/docs/experience-platform/dashboards/guides/segments.html?lang=en#...
To add an audience overlap report for the segment, please follow the below steps:
1. Goto Segments -> Overview
2. Add Widget -> add Audience overlap
Hope this information helps. Happy learning, and keep sharing!
Best,
Ankit Bhatt