My suggestion would be to use the excellent Pandoc to convert your LaTeX file into an ODT.
Ligatures (as I understand it) depend on the font's encoding and capabilities. If you use something like Khaled Hosny's superb Libertinus fonts (tweaked versions of Linux Libertine and Biolinum), your ligatures will "automatically" work in LibreOffice Writer. There are, of course, other font options if you prefer.
(The bug report you linked in the comment to your question is a very old one, and open type features have been working nicely in Writer for some time now.)
To show the community your question has been answered, click the ✓ next to the correct answer, and "upvote" by clicking on the ^ arrow of any helpful answers. These are the mechanisms for communicating the quality of the Q&A on this site. Thanks!
Allegedly, Word is able to and Writer fails: https://workplace.stackexchange.com/a... On the bug tracker I only found https://bugs.documentfoundation.org/s...