To leave a Team follow these steps:
Step 1: Tap on your profile picture to view your profile.
Step 2: Under ‘My Teams’ select the Team you would like to leave.
Step 3: Tap on the three dots located in the top right hand corner.
Step 4: Tap on ‘Leave Team’.
Step 5: A notification will pop up. To confirm you want to leave that Team tap on ‘Yes’.