I'd like to advocate for an option to include linked Revit file support as an option in the Autodesk Revit iTwin Connector. With this option, the iTwin ingest workflow could be a single operation. Revit files rarely operate in the absence of other Revit files and I don't see why the single connection can't operate as a surrogate for multiple bridges, posting individual files up to the iTwin platform. Using the Navisworks bridge with an NWD isn't a great option because the Revit metadata gets mangled and dropped. Linked DWG files need not be supported as they are becoming less common. Ingesting / linking from Revit is a hurdle to using the iTwin platform for blended tech projects.
We have the first release of support for linked files in the Revit connector. There are a few limitations with this and it requires a feature flag to be first set by Bentley before using it. If you are interested, please send an email to tim.lawrence@bentley.com.