It's good to get some sealed containers and immediately empty the bag into multiple smaller airtight ones. I think oxidation is the main problem. I surmise that you could purge the containers with dry ice or something before closing it, too.
This is not important to many people, but "actively hostile to Linux users". Like, vocally nasty about it. They're not only publicly dicks about it, their launcher software self-immolates regularly.
Manual save made sense when a disk write froze the program for seconds and engaged the disk drive with sounds (which I miss a little; very reassuring) but today autosave ought to be fully expected. LibreOffice really should've had it on by default.
Russia can end this in a day by withdrawing their aggressive seizure of sovereign Ukrainian territory.