Hello,
you seem to mix packages and their respective implementations
Ubuntu/PPA libreoffice
is made by Ubuntu base packaged or by PPA repositories
In fact libreoffice
(which is in /usr/bin/
) is just a symbolic link to real installation directory of distribution specific packages in /usr/lib/libreoffice/
(see also ls -l $(which libreoffice)
The Document Foundation:libreoffice6.3 --writer
is to be used if you download from TDF (libreoffice.org) directly. For sure you could replace the symbolic link of Ubuntu packages to use libreoffice6.3, which by the way is also a smbolic link to the installation directory of TDF packages into /opt/libreoffice6.3/program/soffice
Having said this: It depends on from where you install your LibreOffice and if you stick with PPA (which is the recommended way, if you are unsure why to go another way), the libreoffice
will always work, since this one replaces just gets linked to the new version (this also means: If you use LibreOffice PPA, you can have one release only at a time).