There is a great SAS Communities article byAllenCunningham describing the differences between the four different methods of deployment. Hopefully this gives you the information you need to be able to chose the best method for your deployment:
This is a 1,5 year old post, so I'm not sure if it still holds:
"With the shipment of Stable 2020.1.4 (mid-March 2021) the preferred method of deploying SAS Viya is to use the SAS Viya Deployment Operator, or it should be going forward."
I think this post you pointed to was posted before the "sas-orchestration" deployment option was added as a supported method for deploying SAS Viya. The "sas-orchestration" deployment option was added recently at version 2022.12.
There is a great SAS Communities article byAllenCunningham describing the differences between the four different methods of deployment. Hopefully this gives you the information you need to be able to chose the best method for your deployment:
The SAS Users Group for Administrators (SUGA) is open to all SAS administrators and architects who install, update, manage or maintain a SAS deployment.