I won't be using a 'secure' messaging app built by the govt any time soon...
But even if you’re not in the target demographic, you might benefit: The government will run a large installation and hopefully some code will find its way back to the OS version.
I want to type this into a search bar to see if it's a thing... but simultaneuosly I'm terrified of the prospect of discovering that it is.
It is, or at least Centrelink, Medicare, NDIS and Veteran's Affairs use it in Australia. Wouldn't be surprised if it was also used outside of DHHS.