Sir a Linux desktop recommendation for non-tech-literate elders is just silly
A Linux install that meets the basic needs of the user is perfecto!
Less so recently just due to time constraints, but I'm generally the technical person in my family group, and I've lost enough touch with Windows that troubleshooting it is increasingly difficult. If they need me to 'format and reinstall' they're getting Linux unless they have a very specific need that only Windows can cater to.
With a well-supported hardware configuration and a working web browser, even a non-techie may have a more stable experience than they would with Windows.
That has as much to do with the decline of Windows as with the ascent of desktop Linux, but still.
Bulletproof, immune to all the apps and malware. She couldnt break it.