Edit properties on managedDevice objects via Graph API

Question

I had raised an issue on the Graph SDK Github page about not being able to change user-related properties on a device object, and was asked to raise the issue here so the API owner could respond.

The documentation shows that all of the user-related properties are read-only But after doing a Ctrl+F to find out which properties aren't read-only, every single property other than Notes and Managed owner type are read only.

So. Why does this exist if you're not allowing administrators to edit managed device properties through the API?