In Canvas courses, you can show or hide your left-hand course navigation links. This is a setting per user, not for your entire course.
At the top left-hand corner of your screen, you’ll find a three-lined Menu icon (also referred to as a “hamburger” icon).
Clicking on the Menu icon either displays or hides the course navigation links from your view. In the below example, the course navigation links are hidden in the image on the left. The course navigation links are visible in the image on the right.