[SS10/Connect/ORD] shifting from network/VPN to Sharepoint/OneDrive?

My office wants to shift from a traditional physical network server to a cloud service through SharePoint/OneDrive (I don't even know the difference?).

Is there any documentation on MicroStation/Bentley requirements for such a thing?
If anyone here is doing this sort of thing already, what sort of issues and pitfalls have you run into? What problems have you had to work around? I'm going to have a meeting with our IT folks (who are essentially CAD illiterate) and I want to have as educated discussion as I can.

We currently have our workspace on the network, pointed to by a custom configuration. In theory, We may need to simply redefine a half-dozen variables from M:CAD to...whatever the SharePoint address would end up. But is it really that simple?

(Yes, Bentley people, I know you want us to use ProjectWise products, but we aren't going to buy another software package when SharePoint is "free". Besides, we don't have anyone who could configure or administer those)

Thank you.