My relatives are using Linux with LibreOffice just fine, no complains. You will only have problems if you must use proprietary apps from monopolies which actively fight against freedom.
i use libreoffice every day and love it. writer is great. it has an easy menu. (personally, i have found ms office annoying ever since their ribbon device). and calc is a great spreadsheet. i think it is psychic a lot of the time, knowing what i want to do.
