It's mostly used for customer-facing applications (Customer Identity Management). API management and self-service flows are the most utilized capabilities. It offers a lot of customization in terms of branding, email notifications, and creating a good end-user experience.
For remote access, we have solutions proposed, like Okta Identity Engine (OIE). It has more capabilities than the classic engines. The certificate-based system is one thing, and third-party tools like Intune and Jamf for iOS devices. There is a trust relationship between these device management tools, and that contributes to control over the end-user devices.