Similar to the suggestion related to direct conversion from Revit to Qonic (Convert Material properties from Revit to Qonic)
For the same project I now exported IFC4 Design Transfer View from Revit, including the material property sets. I can view those material property sets in BIMCollab. For example the material Keynote is available there.
When I then upload that IFC model into Qonic I can see the different material names linked to a single object, but it appears I cannot see the material property sets. Thus also not the material keynote.