Today (5 Nov) I went to the PA LibreOffice page, to download the latest version. There are two download buttons "Download 3.6.3" and "3.6.3 (All Languages)".
However BOTH buttons have the following text on the second line: "for Windows, multilingual". Presumably, only the "All Languages" button is multilingual? The other one should be "English only"? Otherwise, both of the buttons should point to the same download files! In which case, the size of the downloads should be the same (and you wouldn't need 2 buttons)!
Just below them on the page is a full explanation. One is a set of the most common languages. One is every supported language.
Sometimes, the impossible can become possible, if you're awesome!