@generica a few years back a lot of money was spent on a "custom cloud" for the NHS (which failed), now they just use what I jokingly refer to as "Brexit 365" (Office 365 on UK only datacentre)
Luckily at my work because we are mixed funding (private+NHS) we can still use the pan-European O365 as well as locally maintained systems (I would rather not have the Redmond stuff but no one codes UK healthcare apps for Linux (some tried, but politics on both sides killed that project)