Copilot in Viva Glint user role control change (from April 30)

Hi team, hope you are doing well. I read https://learn.microsoft.com/en-us/viva/glint/copilot/admin-enable about Copilot in Viva Glint user role control change, beginning April 30. What will bring this impact on customers for example, who turns on only for HR user role?  Thank you for your support in advance!