"Microsoft has not commented on whether it continues to support existing Russian deployments"
Bit of a dilemma; they really should stop supporting existing deployments of Windows (desktop), yet the side effect of not getting the updates would mean Russian Windows users would have a more stable desktop..
Perhaps an appropriate security and feature update would be for MS to include a Tor install for Edge, so by default when users open Edge they get the news from outside Russia splashed across their screens and a Favourites button for the BBC Tor site.