Doesn’t work without Office 365

You’re out of luck if you need OneDrive for Business and your company uses SharePoint site libraries or on-premises instances of OneDrive. Here’s the response I got from OneDrive support when asking for the previous version that DID support on-premises instances:

"Hi,

Thank you for contacting us for help on OneDrive.
Let me help you out with your questions installing an old version of the Business App.
Unfortunately, we would not see a link for an old version of the app to download, as the build will be unreliable on multiple fronts and not supplied to download through Microsoft anymore.

Regards
OneDrive Team"

ITC1 about OneDrive, v17.3.6389.