Workflows can use app permissions
Allow workflows to read from and to write to all items in this site.
SharePoint 2016
Feature Details
ID ec918931-c874-4033-bd09-4f36b2e31fef
Scope Web
Hidden False
ActivateOnDefault True
AlwaysForceInstall False
RootDirectory C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\Template\Features\WorkflowAppOnlyPolicyManager
ReceiverClass Microsoft.SharePoint.WorkflowServices.SPAppOnlyPolicyManagerFeatureReceiver, Microsoft.SharePoint.WorkflowServices, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c