Is LibreOffice a ‘single’ download? Or is it similar to MS download with “multiple devices”?
(ie: do I need to download on EACH? my desktop/wife’s laptop/maybe our Android cells?)
For any version you need one download per Operating System which you then can use on any computer from which you have access to it.
(An old version of an OS may not be supported by a recent version of LibreOffice. In this special case you may need to downlosd an older version of LibO in addition.)
For example, I download each new version, install on my laptop, copy the download to a memory stick and load it onto my wife’s laptop.