This article shows how to check feedback from your instructor on writing assignments.
When downloading PDF, make sure you have downloaded Adobe Acrobat Reader DC in order to see the comments inserted.
Although this feedback feature is part of Canvas, you can also download the file with comments as a PDF document to view outside of Canvas.
Log in to Canvas> Your Course> Grades> Find proper assignment that you need to check comments for the essay.
Once you click on the assignment, you should see "Submission Details". Click View Feedback to see a pop-up window.
Downloading Instructor Feedback
It is highly recommended that you download the PDF file, but it is not required to view the comments inserted by instructor.