Google has introduced new ways to discover and navigate comments in Google Sheets
- Review comments and conversation threads in a sidebar.
- Apply filters to find the most relevant comments for getting your work done when a document is highly collaborative.
- Page through comment threads in a document in the comment overlay.
- The comment icon in the Appbar.
- The "open all comments" item in the sheet tab.
- The "open" from any comment anchored to a cell.
- A new button in the comment overlay that allows you to page between comment threads in a document.