Explore the Activity feed in Microsoft Teams (free)

Whenever someone reacts to a message, creates a task list in your group, assigns a task to you, invites you to a meeting or event, or @ mentions you in Microsoft Teams (free), you will receive a notification. You can check your notifications in your Activity feed.

Select the Activity   tab to go to your Activity feed. Select any item in the activity feed to jump to that message in chat or the task list.