It is impossible for either of us to "WIN" this debate, pun intended

.
Both of us would have to go and take a machine, reload the very first version of Windows 10 from scratch, check what is available and the repeat for each version. Neither you nor I will be prepared to do this just for the sake of proving this point.
Suffice to say, that IF you have changed anything in Group Policy AND you do not restore ALL the defaults BEFORE you go through an update process, you cannot say what is available in a vanilla version and what is not.
The fact is that it is possible in WIN 10 Pro to set ANY network to a metered connection and this has always been possible. It is even possible in WIN 10 Home. Whether this is because you choose to use group policies or registry edits or whatever else you find on the Internet it is possible.
So claiming that is not possible is just wrong .... and misleading.
sajunky has such an ingrained prejudice against all things Windows that he has completely lost his objectivity on these matters.