Are German prisons as scary as US (from what I’ve seen on TV) prisons or South African Prisons?

Nope, not even close from what I hear about the US prison system. It still sucks obviously and we just had a scandal in Augsburg where inmates have been tortured (beatings, not enough water provided, forced to stay naked, sleep on the floor etc).

I get the sentiment that the Russian people are responsible for their government. But repression in Russia goes far beyond “a couple of arrests and beatdowns” - they are openly killing people, torturing them, putting them in labor camps and throwing them behind bars for years or decades for very minor stuff.