I would put her on the latest Ubuntu LTS, make a single-user Ubuntu pro account so she keeps getting security updates and don’t do major OS updates on that machine for the next decade. You and her can decide which DE, either Gnome (more mac-like) or Budgie, Mate, or KDE (more windows-like. Those are my win-like preferences in that order)

Gnome is more touch friendly and simpler.

What a terrible post. This has nothing to do with Linux.

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Any websites or projects showing the 2 sec of audio in a QR code? Sounds cool!