Just a quick one before more information starts coming through, but the Windows Update For Business Group Policy settings can be seen in Local Group Policy in Windows 10. Here are a couple of screenshots to show you what’s been made available.
If you have configured Windows Update previously, you will find Defer Upgrades and Updates alongside the existing settings.
Here you can see the options, including the ability to defer to upgrades and defer updates, as well as the ability to pause upgrades and updates if you do find issues and need to stop further updates from occurring.