[nzeid]

> If you're threat model is surveillance state, are things like this helpful or harmful?

I think the more vicious oppressive states will give you deep trouble if they simply catch you with this software. But if you're looking to simply obscure traffic from your internet provider or some other malcontent platform, Tor will work.

> If you need a tool like this, what's the best way to obtain/install this anonymously?

Hehe, if you need to hide your DNS query to the Tor project or traffic directly to it, you are probably somewhere where simply possessing this software can get you in a lot of trouble. I wouldn't encourage you to do anything reckless.

Otherwise, just go to the site shamelessly and get it.