Would you mind linking to this ISO and the T&Cs? I've only ever used their ISOs for VMs -- which are how I use Windows, occasionally and rarely -- and they have pretty harsh conditions like timeoutes, etc.
It works as described. One caveat: the website won't let you download an ISO if your browser's user-agent is set to Windows, instead it'll prompt you to use the Win10 media creation tool. But you can download the ISO if accessing from Linux/macOS/Android/etc., or by using a user-agent changer browser extension on Windows.
