In a My Studies module select the “Watch in Panopto” arrow icon.
Select the ‘Stats’ link
Check viewing stats, and download reports as needed.
Interpreting the data isn’t easy,
If people watch the video together, only the person playing it gets recorded as a viewer.
Common drop off points in the timeline may mean the students struggled with a concept, or were just bored.
The best way to find out is to ask them.