Re: I'm surprised it took them so long
Exactly. Just like ditching iOS devices (last year?), this move away from proprietary and increasingly cloud-centric software comes as no surprise at all, except for the rather late realisation. It's a sensible decision, because let's face it: if US agencies wanted the data on Russia that was hoovered by Apple, Google, M$ et all, they would get it. This is quite easily labelled as "in the interest of national security," hence nobody is going to stop that from happening silently.
Other governments, even if they allign themselves closer to the West than the East, should quite frankly do the same.