The My Notifications page hosts your user specific notifications such as booking, visitor, and task notifications as well as general Building Announcements that were published by your organisation.
Alternatively, you can access the My Notifications page from the bell icon at the top right corner from anywhere in the Flex app.

Click the notification row to open the side panel with more details about the notification. The most recent announcement is always on top.
Should you have more than three building announcements, you will have the See previous announcements button available.