[jraph]

> the problem is which flavours

Whatever distro which is pre-installed on the computer you buy, or whatever your geek acquaintance picks, or whatever you pick as a geek yourself (any mainstream distro will do).

> for how long

The lifetime of the computer in all of the cases, or, in the last case, until you want to try out something else.

Seems decent in any case.

[pjmlp]

Worked very well for netbooks, with OEM specific distros.

It was a vision on what something like Android would be.

[jraph]

Not sure what's your point, netbooks like the eee PC are starting to become ancient history anyway.

When it comes to our current era, Dell, Lenovo and HP computers sold with Linux are fine, and there's KDE-related hardware that seem nice too [1] (at KDE they understood that it's important to be the default OS, so they are pushing towards this). system76 too I've heard. Obviously choice is more limited than for Windows (although macOS is doing well with limited choice too), more biased towards pro, but there are decent options. The installed distros are quite standard too, there's some customization but not more than what we see on Windows computers.

[1] https://kde.org/fr/hardware/