How to remove LibreOffice installed with Lubuntu 20.04

Question

I found a problem with the way the default install of LibreOffice Impress handles fonts on Lubuntu 20.04. That problem is covered here. In short, the solution was to remove the default install of LibreOffice (the one that gets installed by installing Lubuntu) and installing the snap version of LibreOffice.

Wanting to keep my system nice and clean, I wanted to remove the existing (default) LibreOffice. I tried:

sudo apt remove libreoffice

I also tried various versions of the above, including --purge, etc. However, it kept saying that LibreOffice was not installed, so it would not remove it.

Eventually, I found the software center for Lubuntu (my main machine is Ubuntu). There I could remove, individually, Calc, Impress, Writer, etc. However, there was nothing to remove the over-arching app of LibreOffice.

To be clear, that over-arching shell is still there. I can launch it but it cannot read any files because Impress, etc. are all gone. However, it's still there and I would like to remove it.

I found a lot of help at my other question, including this answer which indicated I should be able to use:

sudo apt remove libreoffice-base-core
sudo apt autoremove

This did not work as apt does not see that LibreOffice is installed.

Package 'libreoffice-base-core' is not installed

I then tried this, based on advice from that answer:

dpkg -l |grep "ii libre"

It returns nothing at all.

I don't see a way to remove the default install of LibreOffice, which I do not need because the snap version is working well.

When I type in:

whereis libreoffice

I get:

libreoffice: /usr/bin/libreoffice /usr/lib/libreoffice /etc/libreoffice /usr/share/libreoffice /snap/bin/libreoffice.draw /snap/bin/libreoffice /snap/bin/libreoffice.math /snap/bin/libreoffice.base /snap/bin/libreoffice.calc /snap/bin/libreoffice.impress /snap/bin/libreoffice.writer /snap/bin/libreoffice.filebug /usr/share/man/man1/libreoffice.1.gz

Can I simply delete everything named libreoffice* everywhere outside of /snap/bin/? Will that break anything?

Answer 1

Basically, it's apt purge libreoffice-common.

You should be able to get almost full list of related packages with dpkg -S /usr/lib/libreoffice. At first glance it looks like all of them are safe to apt purge. List of packages that were first "level" for Lubuntu:

$ apt depends lubuntu-desktop | grep libreoffice

  Recommends: libreoffice-calc
  Recommends: libreoffice-gtk3
  Recommends: libreoffice-impress
  Recommends: libreoffice-qt5
  Recommends: libreoffice-style-breeze
  Recommends: libreoffice-writer

Answer 2

Firstly I'll apologize for the errors I missed in my answer on Easy fix for LibreOffice Impress font problems on Lubutu 20.04?. I have corrected it.

To remove the additional packages you need to run

sudo apt remove libreoffice-core libreoffice-common libreoffice-style-breeze
sudo apt autoremove

I'm not removing every package... via command hoping for the rest being removed when the autoremove is performed. I'd executed that later because they were left, but had failed to copy those packages into my prior answer, for which I'll apologize again. Sorry.