Steps to create an Essbase 21c instance isn’t too much different from 19c, but it is simpler as you do not need to manually encrypt passwords or client secrets any longer. I did not add narrative to this process; just screenshots. Narratives can be found on the 19c instance creation site: https://realtrigeek.com/2020/04/24/creating-an-essbase-19c-stack-on-the-oci-marketplace/
RealTriGeek 