@jwcph I used to use Office 2003, 2007, 2013, and 2016 I think.
I haven't reallly needed them much for anything since school (computering isn't my work, just for funsies).
2007 and 2013 were my favourites, and OnlyOffice reminded me of using 2013.
LibreOffice is ugly (for my taste) and dark theming never worked properly. It always worked very well otherwise.