As stated on the docs page - "Currently, the Business document management feature is implemented only for cloud deployments. If this feature is critical to your on-premises deployment, let us know by providing feedback on the Ideas site."

As described on the feature page - "One of the top pain points reported by customers is the absence of a business user experience to customize printable business documents."

Both of these statements are true for us.
Using Word/Excel to modify the templates and the option to convert them to PDF would be a game changer to our business operations.