2. Mote

Mote is an audio feedback app designed for students, teachers, and teams. Why type out long feedback, when you can provide element-synced audio feedback for shared documents?

You can do this for websites like Google Docs, Sheets, Slides, Gmail, Forms, and Classroom. Click the extension icon, select any element, and then record a voice note. This will now be integrated directly into the document. Anyone who has access to the document can now hear your audio feedback.