I would like to echo the comments around Hybrid Environments.
This article is not very clear in explaining what to do when you are in hybrid, the -workspace switch is not available in on-prem environments, so do you just have to build cloud objects direct in the ExchangeOnline shell?
Or do you build on-prem with New-Remote* , then run the -workspace switch in the ExchangeOnline Shell?
Is Workspace's available to on-prem users? Or only Exchange Online users?
Will it available for Outlook 2016 (I assume not, but where's the documentation)? Or only Outlook365 / Outlook 2019?
There needs to be an official Microsoft documentation site for this product with all of the relevant information.