Nope. I had to reinstall and the option to add the proprietary repository was not as obvious nor as emphasized as it should have been. It almost seemed like an intentional snub at Nvidia. I bailed for other desktop-related issues and ran back home to another distro.
But maybe Debian doesn't want to focus on desktop users and that's fine - they can continue to rule their kingdom of hypervisor cities filled with docker containers. The world needs that too.