Linux (in my case Fedora) has been fantastic, especially for the non-techs who have not gotten used to Windows or a Mac! All they need is a browser (with adblock) and maybe a simple word processor. Fedora does not nag about updates, it just chugs along and keeps everything up-to-date in the background. Major OS-updates is a one click in the app store, which I do once a year-ish. Soooo much less hassle then MacOS and Windows!