My parents evolve backwards when it comes to computer literacy. It seems they especially unlearn all the windows 8+ changes, since a lot of UI philosophy stayed unchanged from 95 to the end of the XP era, so that appears to be burned into their brains forever. Word 2000/XP. They don't really write any documents anymore, but LO might actually be more what they expect today than modern MSO.

My mom uses LibreOffice, too. Granted, she doesn't do anything special. Just a few docs for housekeeping. I even forgot about the fact that she is using it. Just recently noticed it again. I would assume she would have had WAY more problems if she would have to use some stupid microsoft account to be able to use word.