Judging from this post, support was added in Revit 2019 but it is strongly advised against two posts later by @jacob.small and if he advises against something, I would take it as gospel.
If I understand BIM 360 correctly, with the use of Autodesk Desktop Connector, it allows you to access 360 files using file explorer so the path should be available with the proper methods (os module in python for example). I am not sure how to access Revit Server however.