FBX Exporter v.2.0.3 missing UnityFbxExportSet

Hi,
Unity explains the roundtrip between Maya and Unity in this cool video:

The problem is that if you use Unity 2020 and install FBX Exporter package 2.0.3, When you Import the FBXLinkedPrefab inside Maya viathe Unity/Import Menu… UnityFbxExportSet in Maya is missing, so I can’t replace the simple Cube with a spaceship and simply Export to update the linked prefab.

Where I was wrong?

Thank you

Anyone?

Really? Nobody is using this FBXExporter feature?