Hi - the ISO Image Writer seems to currently be in need of a developer to step in and get production of Windows builds flowing again:
For what it’s worth, an interim solution could be the Windows builds of the Fedora Media Writer - I haven’t used it in a long time, but I think I recall it being able to use any .iso file, not just Fedora images
Yes, I’ve seen your thread and the remark from @redstrate, but this is old, as well. Their seams to be a version available according info on github, but the referenced download link is on a not animore existing server. I expect this was an build error which was not detected till now.