Hi There!
You certainly can. If you create an Attendees > Survey Answers report, you can pull in the field for "Last Modified Date" (which also pulls in the timestamp) bu clicking the "Add Field" button > Category dropdown > Registration Answer: General Information > and select "Last Modified Date."
A few additional suggestions: You can sort the report by the last modified date, so that it goes in chronological order as well as filter this report to just include the feedback survey if you set the advanced filter as "Survey Type equals Participant Survey."
Hope this helps! Let me know if you have any other questions.
Best,
Anna