I receive notifications when records are edited even though I have not configured the setting to receive them

Article Number:040375

The possible reason for this is that you are specified as an assignee for process management.

If the Record is edited check box for Assignee in the General Notifications setting is selected in an app where the Process Management feature is enabled, notifications are sent to assignees when a record is edited.
To disable the notifications, open General Notifications from the app settings screen and uncheck the Record is edited check box for Assignee.
The notifications setting for assignees