In Teams for your personal life, there are two types of task lists, personal and shared.
Personal task lists are made up of tasks you’ve created for yourself. You can find and edit your personal tasks by selecting the Tasks tab, then selecting one of the options in the Personal lists section.
Shared task lists are made up of tasks you or others have created in groups. You can find and edit these tasks by selecting the Tasks tab, then selecting the group or one-to-one chat in the Shared lists section.
You can also find group or one-to-one shared task lists in their original chat by going to the chat, selecting the Dashboard tab, and selecting Tasks.