Nah, that's by exception, and very minimally. WE don't, for most things. The entire force, uniformed and not, uses NMCI, which is not Linux-based or even Linux-adjacent, sadly.
It is a set of applications, mostly web-based, that are built on top of TCP/IP. Many of these applications use Hosted Virtual Desktop to Linux servers.
However, few of the desktop clients are Linux. Instead, using an interface to access from Mac/Win.
Sadly convincing politicians and career generals that Linux is good for office desktop is not the easiest thing for the IT experts to do, even when they bring with them a huge list of security flaws in Windows and recommendations from the NSA.
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I just use Linux, problem solved.
Now, the Facebook one, no fixing that one. Facebook has been laggy AF.
https://en.m.wikipedia.org/wiki/List_of_Linux_adopters
(I'm not saying they shouldn't.)
It is a set of applications, mostly web-based, that are built on top of TCP/IP. Many of these applications use Hosted Virtual Desktop to Linux servers.
However, few of the desktop clients are Linux. Instead, using an interface to access from Mac/Win.
Sadly convincing politicians and career generals that Linux is good for office desktop is not the easiest thing for the IT experts to do, even when they bring with them a huge list of security flaws in Windows and recommendations from the NSA.
Basically, any capable high-reliability system that isn't running a custom Real Time OS is running Linux these days.
Note that many systems are still running their legacy Operating Systems from the 80s.