Frankly, they have been poor partners.
I know people at Ledger. Nice people. But the app has been broken for a long time, they told me directly time and time again that they were building a new app for Zcash (rather than fix the issue with z->t) but it never materialized and have been unable to provide any status.
They seem somewhat motivated now, with pressure from Binance, to address the issue Binance has. Quite frankly, it shouldn’t be this hard.
Binance is historically hard to work with and elusive at a decision-maker level - much different than my experience with Gemini and Coinbase.