If I were offering a free (as in price) alternative to MS Office, I'd first recommend WPS Office over LibreOffice, even though it's closed-source. It has a much better interface out of the box. But I'd use something to block it from phoning home to its probably Chinese government-beholden servers, like OpenSnitch for Linux* or LuLu for macOS.
If I may, in my experience Softmaker is not bad at all (still closed source and Commercial, but affordable), LibreOffice simply does not fit, for very light use LibreOffice is fine, but still has - here and there - too many "quirks".
(*) https://github.com/gustavo-iniguez-goya/opensnitch