[openSUSE Leap 15.3 (KDE)] Uninstall LibreOffice

I installed openSUSE Leap 15.3 (KDE).
It comes with LibreOffice 7.1.2.2.
I uninstalled that LibreOffice 7.1.2.2 using YaST2 since I want to install the latest version from
https://www.libreoffice.org/

I downloaded the file
LibreOffice_7.2.3_Linux_x86-64_rpm.tar.gz

According to
https://wiki.documentfoundation.org/...buntu_.2F_Mint
to install the RPM files, run
su -c rpm -Uvh *.rpm'

^^^^^That worked.
It installed fine. I see LibreOffice on the Start menu and it runs alright.

How to uninstall it?

This is what the Wiki recommends
https://wiki.documentfoundation.org/...buntu_.2F_Mint

su -c 'rpm -ev --allmatches libreoffice'

^^^^^This did not work. It says
error: package libreoffice is not installed