And this is the answer:
It’s not a library, so it definitely won’t be in the 64-bit repo. The 32-bit repos have been discontinued, so the only way to get it now is from koji.
This is a consequence of this change: https://fedoraproject.org/wiki/Changes/Noi686Repositories
So the only way to install it is:
sudo dnf install \
Please note that you should update it by hand whenever there is a new version of the package.