Get her on a Mac if you can.
I got my mum to switch to Mac from Windows over a decade ago and it’s been fantastic for both of us. Her support needs dropped from once every two months to once every few years, and she’s been able to do more with her computer than she would ever have attempted on Windows. She’s been using knitting software to make patterns to share and learnt how to use photoshop, all by herself. The computer just working and not breaking anytime she tried something was fantastic for her confidence in trying/learning new things.
An iPad with a keyboard folio is generally even better for these kind of users. They can do everything they want and need, and the OS is uncomplicated. And of course never breaks.
Sounds like they're on the market for a new OS, not a new computer, which I think is the situation a lot of Windows 10 users are finding themselves in.
