"SASStudioV" is "SAS Studio (Enterprise)" which provides functionality by relying on SAS Configuration Server, SAS Message Broker, SAS Infrastructure Data Server, and other microservices. For this reason, SAS Studio (Enterprise) is available only in full deployments of SAS Viya.  SAS Studio (Enterprise) authentication fully integrates with the features provided by SAS Logon Manager, and provides more authentication possibilities.   "SASStudio" is "SAS Studio (Basic)" is used in programming-only deployments. SAS Studio (Basic) is an embedded web application that does not rely on external services. Therefore, SAS Studio  (Basic) has relatively few dependencies, such as a SAS Object Spawner and SAS Workspace Server. SAS Studio Basic uses host authentication such as Pluggable Authentication Modules (PAM) and Integrated Windows Authentication (IWA) to authenticate users.   Further information in the link below: SAS® Viya® 3.5 Administration: Configuration Properties: SAS Studio 5.2 (Enterprise) and 5.2 (Basic) Administration Differences  ... View more

There is a great SAS Communities article by AllenCunningham 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: New SAS Viya Deployment Methods ... View more