At this point, customer sees all workers on Workers list screen regardless of the access granted in company hierarchy. User should be able to see only workers from the companies user has access granted in company hierarchy.
Category: General
Ideas Administrator

Thank you for your suggestion. The functionality described is available today in Dynamics 365 Human Resources.  Within HR Shared Parameters, there is an Advanced Access tab. When this is on, users cannot view employees in legal entities they do not have access to.  https://docs.microsoft.com/en-us/dynamics365/human-resources/hr-setup-shared-parameters#settings  Please add a new Idea with additional details if the above description does not meet your requirements.