As many will have heard of, Microsoft will distribute a stock Ubuntu installation to be run on Windows 10. Source.
Someone has made the point that being this the result of a partnership with Canonical, questions about it should be supported.
Per the Help Center:
Questions that you may ask:
Using and administering official Ubuntu flavors including: Edubuntu, Ubuntu GNOME, Kubuntu, Ubuntu Kylin, Lubuntu, Mythbuntu, Ubuntu Studio, Xubuntu, Ubuntu MATE, Ubuntu Touch, and Ubuntu "Snappy" Core.
Running third-party applications on Ubuntu.
- Development on Ubuntu.
- Services provided by Ubuntu and Canonical.
- Any question not mentioned below or here are great!
"Ubuntu on Windows 10" technically doesn't fit anywhere on the list.
However it's hard to deny that "Ubuntu on Windows 10" may be considered a "Ubuntu flavour" to some extent, and it's also hard to deny that it's also "official".
On the other hand, this is going to run on Windows. So as the same person suggested, this should be limited to questions / issues not concerning the Windows Subsystem for Linux.
I don't have a stance on this yet. But for sure this needs to be clarified before being buried under questions about "Ubuntu on Windows 10".
So the question is: do we consider "Ubuntu on Windows 10" the same as an official Ubuntu flavour? Do we support it? To what extent?