The linked article lists Raspberry Pi Imager as an option for writing Tails from macOS, and that is also available on Linux and Windows.
https://www.raspberrypi.com/software/
Though the site only shows how to install on Ubuntu, the GitHub repo for the tool does have an AppImage that should work on any distro.
Completely aside from the blob issue mentioned, the Tails team has recommended against using a multiboot utility like Ventoy to install Tails. Ventoy works fine for basically any other operating system (again, aside from the blob issue), just not Tails, which is what this post is about.