Is this a school owned device? Goofy 4 line script that uses tons of resources, so that script that unnecessarily and intentionally taxes the laptops hardware, purely innocent right? Any chance why they might not want you to do that?
That’s pretty standard across any respectable industry. You’re given suitable alternatives, if everyone could use whatever applications they wanted then it would be a nightmare.
Something tells me your intentions aren’t innocent(you want to be able to act maliciously at school or on the school network), or you have an overinflated sense of ego, the head of IT likely didn’t give two shits about explaining anything to some brat. You’re going to have to face some harsh realities pretty soon. Expecting digital privacy on a school issued device on the school network is asinine thinking.
Basically PH and other xxx sites need you to verify your identity by uploading your ID. It’s what should be unconstitutional and a violation of privacy.