There is no point supporting
To answer your question, this is the job of packagers like me to take upstream software and make it into a rpm that will work for all Mageia users in a convenient way. Some upstream projects propose some packaged version of their software, either in rpm or deb, but it is not recommended to install those, as they usually cannot keep up with every distro out there. In short, it's not because it's a rpm that it is going to work on a Mageia, Fedora, or Suse system.
By the way (and to confuse you), alien (conversion between rpm and deb) and apt-get/dpkg are in Mageia repositories