I use Ubuntu Studio 19.10.
After to use Clamav (with Clamtk GUI) to scan my PC, I found a lot of LibreOffice files, macros mostly, which Clamav shows as "Possible dangerous threats". But, I guess it is just a "False Positive", because those files are here from the "Official" LibreOffice installation which, I guess, was tested by the Ubuntu community.
But... Just in case... Is there some "Official" web page where we could find all the known Linux viruses status (real known malware, etc)? Is there something like this, where? ???