Joining your team
To become a member of your team on Focus, the team owner should add you using your email address. Following that, you'll receive an email notifying you of your invitation similar to the one shown below.
Once you log in to Focus, you'll see your invitation.
When you accept the invitation, you will be able to see all other members in the team.
Hovering the team you'd like to leave on the 'Other' tab of the Teams menu will reveal the leave icon. After clicking the icon, you'll have a chance to confirm your decision.