Default value for parameter in workspace

I have a similar requirement and would love to see an easy solution to implement and maintain this. 

It seems like the ideal solution would be able to set the parameter values on the workspace so that when a generic, parameterised report or dataflow is deployed to a workspace that it would just read in the parameter values on that workspace. This does not appear to be how this works in PowerBI though. 

The way I am going to approach it now looks like we will parameterise all the reports to point to a named dataset so that when we deploy between workspaces we will only need to update the parameter values on the dataset, based on some kind of convention on the workspace name maybe, with Azure Automation or some other kind of hook.

I found this earlier and will need to look through it but I hope there is a much easier solution to doing all of this because it seems like a lot of additional work to achieve what seems like a simple ask to maintain multiple customer workspaces from one development/production workspace. 

Overview of Power BI deployment pipelines - Power BI | Microsoft Learn