¶ Task notifications
Open in CRM: /tasks/notifications
The task stream in one list: Type, Message, Task, Time, Status.
Rows link to the task they are about, and Mark as read clears them. The read mark is personal — your colleague's list is unaffected.
This is the same stream the bell in the header shows, kept in full. When something was announced and the bell no longer has it, look here.