This is the behavior for ArcGIS Pro in relation to the capability of reading digital models from Autodesk Revit (RVT).
ArcGIS Pro 3.0 only reads Revit file version 2022 to 2017.
ArcGIS Pro 2.9 only reads Revit file version 2022 to 2017.
ArcGIS Pro 2.8 only reads Revit file version 2021 to 2016.
Older files receive an unsupported message.