Ubuntu support?
Interesting ....
Extremely. Win10 allows you to run the Bash shell, PowerShell has OpenSSH support, there's all sorts of cool interoperability going on.
My personal opinion is that Microsoft at LONG last realized that they don't own the entire world, and they better start cooperating with those who own the rest of it, or else they will lose the part they still have a grip on. Especially in the cloud, where they got their asses handed to them by Linux-based cloud providers.
Did you know that the Windows Update servers are (or at least, were until recently) hosted on Akamai's farm, which is Linux? Microsoft switched them over a few years back, when a large Windows Update demand crashed their Windows Server based farm. Akamai provided more robust Linux-based hosting and (as far as I know) Microsoft still uses them for WinUpdate and similar large-load tasks. Many of us got a good chuckle out of that, since (as I vaguely recall) it happened under Ballmer.