I am an English teacher and have received shared documents from each of my students. I receive the initial email telling me I have a shared document, which is good. I will make a comment about their writing and suggest corrections. I do not want to receive any further emails unless a student replies to a comment. How does the student set up their account so that I get no further emails unless they reply to a comment?
In the Google Drive document window, on the far right, there's a Comments box. Click on it and a dropdown will appear including an icon for Notifications. Click Notifications and there's an option for "Replies to you". Will that option do what you need?
Of course, next time Google redesign the UI this option may move somewhere completely different...