As you know, Azure AD allows you to integrate with applications to manage authentication, authorization… through Azure AD.
As part of this integration, you can (and should have) configure third party application integration review to ensure these third party applications added by users or other admins are intended for your company and do not access your Azure AD data for bad purpose.
Well, you can now set the third party approval to either groups and/or administration role.
To configure third party approval, connect to your Azure AD portal (https://aad.portal.azure.com/) and access the Azure Active Directory\Enterprise Applications\User Settings blade to set the approvers to either user(s), group(s) or administration role(s)