Update your policies for continued access

Hello, I received an email to Update your policies for continued access to Billing, Cost Management, and Account consoles

I followed instructions from this post https://repost.aws/questions/QUvS-q9ZmZQ-qlNeAwhdN8dg/update-your-policies-for-continued-access-to-billing-cost-management-and-account-consoles

I created a new policy. Do I need to attach it to any entities afterwards? Here are the available entities it allows me to attach it to: AWSBilling IAM Users GlacierUser IAM Users BillingFullAccess User groups GlacierAccess User groups AWSServiceRoleForSupport Roles AWSServiceRoleForTrustedAdvisor Roles