Comment # 4 on bug 1123960 from Wilms

I had this issue with openSUSE Tumbleweed 20230205

I uninstalled and reinstalled `libreoffice`, which pulled int the following
packages:

libreoffice-qt5 libreoffice libreoffice-base libreoffice-calc libreoffice-draw
libreoffice-filters-optional libreoffice-impress libreoffice-l10n-en
libreoffice-mailmerge libreoffice-math libreoffice-pyuno libreoffice-qt5
libreoffice-writer

I had to install libreoffice-gtk3 manually to fix the theming. Also, running
`SAL_USE_VCLPLUGIN=kf5 libreoffice` worked as well.