Catalog Pane that has a Map with the Blue Link. What does it mean ?

[PROBERT68]

I have looked around on ESRI to find this information but no luck. Could someone help me ?

Hey, I just drew a red circle and I want to know what is it and what does it mean? There is a blue link to it ?

[DanPatterson]

As described here

Add maps and scenes to a project—ArcGIS Pro | Documentation

searched using blue link in the help files

[RhettZufelt]

https://pro.arcgis.com/en/pro-app/latest/help/mapping/navigation/introduction-to-linked-views.htm