Notes, feedback and comments are three distinct forms of communication or records. If the difference is not intuitive enough for you, here is the guide to understand it better:
My Notes tab
purpose: create notes to help you recall what was discussed and agreed upon, or anything you consider important for the specific meeting but do not want others to see
who can see it: only you, regardless of the meeting mode
host, guest and observers each have their own notes
editable
2. Feedback tab
purpose: allows mentors, supervisors and observers to give detailed insights on your meetings
who can provide feedback and see it: this depends on the meeting mode
Coach mode: not available
Review mode: host and observer
Train mode: host, observer, and guest
host, guest and observers can all give feedback
editable
3. Comments tab
purpose: list of all comment threads so you can quickly track down the comment you are after
who can create comments and see them: this depends on the meeting mode
Coach mode: host and guest
Review mode: host and observer
Train mode: host, observer, and guest
host, guest and observers can all write comments
editable from the moments tab