I'm glad I could be of some help, even if it wasn't the answer you were hoping to hear.
Microsoft made it clear that their goal is for all their users to be running a currently supported version of Windows. I could discuss their reasons for this decision, but that wasn't the topic of your question. (Some updates are optional, however.)
At the same time, Microsoft has to take into account that organizations may want to distribute updates to computers in their network according to their internal schedule. So for organizations that distribute updates on their own, they have provided group policies to make this easier.
Of course, it's not my place to tell you what you should do, only to explain. I personally would not recommend a practice that goes against Microsoft's goals. Microsoft takes active steps to ensure that Windows PCs are updated.