Last time we spoke to Microsoft they still had an ETA of before the end of the year.
As soon as they fixed it on their side we will adjust the behaviour of ShareGate Desktop.
Thank you for you patience with this.
Just an update on the state of this.
Basically the import API (which is the one we use for the insane mode) tends to produce corrupted OneNote files at the destination. So as long as this is not fixed on their side we won't be using it since data integrity is one of our priority.
We are working along with Microsoft to try to get this resolved as soon as possible.