They're routinely named after place of origin.
But in the present instance calling it the Chinese Virus has been weaponized by a particular national leader as a means of creating public animosity against an outside Other, which has given "Chinese Virus" a strong racist odor. Not surprisingly, people animated against racism have called out this practice for the dogwhistle it is, and the whole imbroglio has gotten broad publicity. The result: Like it or not, if you choose to say "Chinese Virus" rather than "covid-19" or "the coronavirus" or "the pandemic," you know what buttons you're pushing and so does everybody else.
And now's about the time someone rolls in to point out the swastika's long history in Asian iconography.