Professor,
Belgorod State National Research University,
Russian Federation

Russian post-Soviet society is among the most secularized ones on the European scale. The long-term trend towards the departure from religious traditions first emerged in Russia 300 years ago, during the period of radical modernization by Emperor Peter the Great. The radical and systemic nature of secularization during the Soviet period (1920s-1980s), when religious doctrines and practices were rejected on the level of state ideology, led to the virtual displacement of religion to the periphery of public and, to a large extent, private life. Due to the natural departure of pre-revolutionary generations, mass religious culture had virtually disappeared by the 1970s (V. F. Chesnokova; Y.Y. Sinelina).

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https://sites.utu.fi/bre/religion-in-the-contemporary-russian-society/