Within Teamwork, you can see comments on all items across all projects in the site-level Everything area.
Each comment is marked with the name of the latest user to add a comment to the thread, the project and the company. You will also see if the comment was made on a task, milestone, file, notebook or link.
Unread messages will display a blue dot beside them which you can click to mark the individual comment as read.
To mark all unread messages as read in one go, click the three dots in the top right and select Mark all as read.
You can access sorting options in the top right of the Comments area.
Click the filters icon beside the sort options to open the advanced filters pane.
You can switch between view styles via the views dropdown.
For more information, see: Everything Section - All Options