Related to that, what really saved me multiple times is the option for LO to embed the ODF document inside an exported PDF, so you can edit the file even if you didn't save or have accidentally deleted the original LO Document.
It's not enabled by default IIRC, but it's "set and forget" once you enable it.
wait this is news for me. LO can export a PDF and save the original ODT inside the same PDF?
This just blew my mind and changed how I do ODT+PDF forever!