The page https://getfedora.org/workstation/prerelease/ mentions using the fedora media writer to write ISOs to USB drives.
It says you can download it using dnf, but it does not give the package name.
The package name is "mediawriter". It would be nice it it actually said that next to where it mentions it. (The link goes to something that does not mention media writer.)
Thanks!
perl -pe 's/^\s+//g' *.py