Its call developer option, this option in settings+about phone+ software then clicking untiit turned you into a developer, based on cyber security test this option turned your device into untraceable.
I don't think there is any need to utilize the feature of the developer option because it's mostly about not being able to be traced through your device, but it doesn't protect your device from hacks or attacks if you click on malicious links that are vulnerable and i think that people that makes use of these developers option in devices are mostly fraud stars that does illegal shits online and tries to abscond being tracked by the government. If you are doing legit works on the internet, then i see no need for the developer's option.