I am looking for a way to remove the overlapping portion of a rounded end buffer where 2 features meet. They are in the same feature class. I cannot use flat ends because of the jagged edges and slivers where the buffer is not wide enough (image 2 example).
Check this method, then.
Use Select By Location tool > Use the buffer polygon as the Input and Selecting Features. Relationship = COMPLETELY WITHIN
This should select the overlapping polygons. You can delete it from the Edit tab.