Ironically, I finally caught up on an online web series (though it's been adapted to a published book as well as audiobooks) and discovered the author does live stream their writing of unreleased chapters.

They're a bit too prolific to actually dig into their overall process, but you can watch them type for hours straight. It's awfully boring tbh since there's no interaction and they're understandably focused on their work.

If your curious - https://youtube.com/@pirateaba/streams