This is most likely an accident of history, where scripts were written for Symphony and as that software morphed to OpenOffice and LibreOffice there was no real need to rename the scripts.

See this Wikipedia page for how IBM Symphony became Open Office.  Libre Office is a fork of Open Office and is currently much better supported.

https://en.wikipedia.org/wiki/IBM_Lotus_Symphony 

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Brian - Windows 10 Pro, 64-Bit, Version 20H2, Build 19042  

One does not discover new lands without consenting to lose sight of the shore for a very long time.

           ~ André Gide