We use the Canvas iOS app in elementary school with K-2 graders. It would be a huge improvement if when students submit an assignment, the choices for course and assignment are auto-populated. They are already in the course and the assignment, so to have to select these again is just extra steps for little ones who may are pre or beginning readers.
Our student workflow uses the Canvas annotation tool (pens, highlighters, etc.). Then students use the share arrow in iOS bringing them to a box to select Canvas course and assignment. Again, this is a duplication of information. If Canvas would auto-fill, it would be much more user-friendly.
The best of both worlds would be to have it auto-fill, but be able to adjust when/if necessary.