That Russian Patriarch Kirill was a KGB agent is not disputed

Kirill, the Patriarch in league with Putin | The Spectator

Illustration: John Broadley Until very recently, Patriarch Kirill of Moscow, leader of the Russian Orthodox Church, was most famous for being …
Their gov't and bishops are one and the same
3rd Order Postulant
But we knew this...
Live Mike
I recall reading somewhere that all Russia Orthodox bishops must meet with KGB / FSB approval before ordination... In that sense it is a state-run religion.