Our primary use case for RHEL is running our front-end web servers. When you visit our site, all of the front-end servers are Red Hat. The databases that are hosted are Oracle and they predominantly sit on Red Hat 7. We're trying to migrate those to version 8.
We also use it for BI.
We have a digital footprint in Azure and AWS, as well as on-premises. Things for us are very fluid. We're always changing and adapting to our environment, based on what the needs of our faculty and students are.