To filter messages in Canary, follow the below mentioned steps:
1. After setting up an account on Android, you’ll be able to see the home screen as shown below.
2. Tap on the more icon.
3. Select ‘Filters’.
4. Select one of the options to display only Unread, only Starred, only Attachments or only Unanswered messages.
Thus, emails will be filtered on your Android device as per the choices selected by you.