I work for a security company, and I implement Tenable for our customers. I just implement this technology. I'm not working with the users.
Our main use case is for implementing and starting scans for the whole company or a specific host. It is used for creating reports or dashboards for the vulnerabilities of the whole company. As a product for web application scanning, the results are uploaded to the cloud, and the management is on the cloud, but we can implement an on-premises scanner, or we can scan the on-premises web applications of our customers.