Ubuntu is a Debian-based operative system. Using the name &quot;Debian&quot; for both makes perfect good sense.<p>Fedora, i.e. Red Hat, is very distinct from Debian. A Debian software package is not guaranteed to work on Fedora, nor is a Red Hat package guaranteed to work in Debian. Both try to be semi-compatible with each other, but that does not make them identical.<p>A common name used in the past is &quot;Unix&quot; or &quot;Unix compatible&quot;, but then what is not Unix compatible today? We could be talking about Linux compatible, but then, the vast majority of programs will work on BSD kernel as well as Linux kernels, while having stronger compatibility demands on distribution-specific technology. Maybe &quot;systemd&quot; or &quot;systemd compatible&quot; should be the new OS name?<p>If you tell me the distribution of your OS, it will tell me enough information to make or identify compatible software. What property is more important than that in a name?