Someone knows how to create a bootable USB for a Chromebook on a Windows system.
Someone knows how to create a bootable USB for a Chromebook on a Windows system.
Windows isn't unique in this context, and any program able to perform byte-by-byte transfers can write Windows onto a USB drive. For Windows specifically, there are three tools I can mention; you can use DD on Linux and macOS, and UEFI booting only needs an EFI folder with the boot files on a FAT32 partition. I guarantee both approaches I shared are effective.
I've struggled to create a bootable Windows USB with DD, Etcher, or Rufus, and it seems most people face the same challenge without much effort.
You're making a mistake because all the tools you mentioned support this functionality. It may require a few additional steps, but the goal is achievable. Calling Windows special doesn't hold up—it's just an ISO9660 file with a bootable MBR for old booting and an EFI folder for UEFI. This is essentially how any modern bootable disc works (except possibly macOS, which I'm not well versed in). RUFUS can write any ISO to a USB drive, as long as you choose the right boot settings; otherwise, it might not boot. With Etcher, just rename the image and change the extension from .iso to .bin. DD requires you to specify the correct boot options.