The rus nazi KGB “church” is not Christian at all.
Russia isn’t known as a Christian nation, it is known as an evil country and a brutal people with a costumed, Russian Orthodox ceremonial institution married to the government and whichever strong man is in charge of it at any given moment.
The Russian Orthodox is an arm of the state, which is why Russians don’t bother with churchgoing, they aren’t actually believing Christians, and the state persecutes serious Christians.