Understanding "ClientPolicy.ini" and parameter "DownloadStreamingMaxStreamSizeKB" behavior

Can anyone shed any light to the fact how OneDrive related paramater "DownloadStreamingMaxStreamSizeKB" behaves and is designed to work?

You can find this parameter within the file C:\Users\<YourUserProfile>\AppData\Local\Microsoft\OneDrive\settings\Business1\ClientPolicy.ini

We've noticed the value for parameter "DownloadStreamingMaxStreamSizeKB" gets somehow auto-adjusted based on the fact if you're "domain" or "internet" connected. What is generating the change and how can you control it, if you can?