For the mobile Canvas Teacher app, please include "Submission Comments" as a filter in Canvas Conversations/Inbox.
In desktop Canvas, a filter is available to view all (including all new) Submission Comments but not on the Canvas Teacher app.
This will allow instructors to be able to more easily access all (and specifically all new) communication from students at one glance (as submission comments are not included within the inbox filter as far as I am aware).
Some of our professors turn off all notifications (for various reasons) but actively monitor their Inbox and Comment Submissions for any new activity. They can do this on desktop easily by going to Conversations and filtering by either Inbox or filtering by Comment Submissions. However, on mobile the Comment Submission filter is missing and thus you have to go into the submissions individually by student to see activity. Frankly ain't nobody got time for that (unless you are actively moving through the submission for grading). This does not address when students make comments after you grade, sometimes weeks afterwards when they finally review their feedback/scores.
Hope I did this right Ryan Seilhamer.