The most comprehensive article you will find outside of Microsoft for a full detailed end to end Workflow of delivering Windows 10 Feature release across and Enterprise
In his own words by Mike Terrill
Windows 10 brings several new challenges to the Enterprise – one of the major challenges is deploying Windows 10 and then keeping up to date with the Feature Update releases (i.e. 1709, 1803, etc.). Although Microsoft has done a great job on making things easier (like a non-destructive in-place upgrade), there are still several technical hurdles that need to be overcome. Businesses just want things to work with the least amount of impact as possible and this is where things start to get tricky. There is a much larger payload that needs to be moved around the network, competing for the network traffic that the business uses (as opposed to systems management traffic). There is also the time it takes to perform the upgrade. There are several factors that will determine how long this takes, but the goal should be to not interrupt business operations.
Read the full article at https://miketerrill.net/2018/10/01/windows-as-a-service-in-the-enterprise-overview-part-1/