DigitalOcean iss not wildly far off it either.
ECS + Fargate is the closest AWS has to it, but you need to do IAM and Networking to utilise it. If you're in AWS already, it's pretty good, albeit with some frustrating limits
I remember an article showing the UI of Windows system apps, and as you go deeper and deeper into %SYSTEM% or whatever, you get UI from progressively older and older versions that are sort of left behind. You get an incentive to polish all the immediately user-visible stuff, but there's so much of it anyway so if the deeper-hidden stuff that a handful of people is using is still working, nobody will touch it. Look, the WMI console was probably unchanged since Windows 2000 at the time of Windows 10.
[0] https://docs.python.org/3/library/concurrent.futures.html#pr...
So we will still be calling it Azure AD in most situations where someone interacts with it