Kevin

The Lenovo Yoga 6 works surprisingly well. I got it to replace a surface book for my daughter and wasn’t really sure what parts of the hardware would be supported, but literally everything I tested works (the only thing I haven’t tried is the fingerprint reader) and the included stylus is amazing in krita as well as just generally. The tablet mode works well, and tent mode is more convenient when it’s on a desk (screen rotation requires the iio-sensor-proxy package). Battery life is decent; it gets around 6-7 hours with moderate use. I’d recommend using it with KDE.

https://www.lenovo.com/ca/en/p/laptops/yoga/yoga-2-in-1-series/yoga-6-gen-8-(13-inch-amd)/len101y0027

You should put your foot down and tell them it’s all about free software while they’re under your roof; they can push open source once they’re 18 and have their own place.

Hah, I feel like they might not approve of a Microsoft laptop? I could be wrong though :)

I got my daughter a surface book with Archlinux on it when she turned four. She’d previously been using an ipad so I wanted something that had a touchscreen, and I installed KDE as the desktop. She learned how to use it extremely quickly, and has even started in on the commandline now that she’s 5 and knows how to read. GCompris is great too.

Me and my wife haven’t bothered with parental controls and instead just keep an eye on her usage, but I agree with other commenters that controlling things at the router level seems like a better bet.