Isn't that... Windows Update? At least last time I looked it would update .net runtimes, Office, what else? OK, Visual Studio has its own update mechanism. Edge is part of the OS, isn't it?
it's still an opt-in setting though. Windows and OS-components like drivers and Edge do get auto updated yes, but to enable Microsoft Update, you still need to turn on a setting in the Settings app.
even setting up a new PC/laptop with windows, this is off by default.
And teams. And new outlook. And powertoys. Onedrive. SQL Server. The Microsoft store. Winget. I'm also not confident Windows Update actually does update Office, which also retains its own update mechanism.