I'm a student taking classes on Canvas and a TA for a course with 160 students. This means my to-do is often filled with "grade" tasks (even though we have separate graders that are dedicated for this task).
If I try to "X" an item, it will reappear the next time a student makes a submission and will keep me from seeing my personal course assignments that I need to complete, which means I often don't see deadlines.
Could you create settings to enable/disable grade tasks (or specific assignments/courses) from appearing in the "to-do" field?