Unfortunately, there’s no way to integrate Zoom with Canvas Grades. However, you can download an attendance report for each class meeting that shows when students joined and left the meeting and the overall duration of their attendance.
You’ll find a link for the attendance report for each meeting after it has moved to the “Previous Meetings” tab under the Zoom link in your Canvas course. (Note: Meeting attendance and poll results are separate reports.)
You can also log into miamioh.zoom.us to access meeting reports; simply click Reports in Zoom’s menu, select Usage as the report type, then search for a specific class meeting by date.