You can cancel via the Billing tab on the settings page
Navigate to the Settings page via either the Left Side Panel or by clicking your avatar in the top right and selecting settings.
Once in the settings there will be a "Payments" Tab if you select that you will see your current plans status and information.
From there you can click "Edit Plan & Payment Settings"
On the Payment Portal you will be able to cancel from renewing your subscription.
If you do plan on leaving us please give us some feedback it always helps !!