It doesn't appear to be there yet, but keep an eye on Libby, where you can borrow it using a library card, from your local library.

For example, here's another Werner Herzog book: https://share.libbyapp.com/title/9611895

I bought it via https://libro.fm/audiobooks/9798217163595-the-future-of-trut..., I could select a local participating bookstore there and it went through them somehow. I choose them because it was DRM free.

I bought mine on audible.co.uk