Good day,
Note: I split the answer and skip some important points since the forum does not allow me to publish it in one message (Know annoying issue).
When scaling OUT a Synapse Analytics Instance, will this allow multiple pools to sit on-top of a single data warehouse
I have a feeling that there is small confusion regarding the names of the entities.
"Azure Synapse Analytics workspace" is basically the equivalent to the "Azure Logical SQL Server". I means that these provide the rapper (a logical instance) to manage the attached entities. Azure Synapse Analytics workspace can include Azure Synapse Pools and Azure Spark Pools, just as the Azure Logical SQL Server can include Azure SQL Databases and Azure Synapse Pool (Notice that Synapse Pools can be attached to Azure SQL Server as well as to Azure Synapse Analytics workspace).