I am aware to a degree of the suppression of Christianity in Ukraine and Russia. The rest of the countries and their religious practices, mostly Islam, I can only speculate were also suppressed to an extent but my feel is not anywhere close to as severely as Christianity was in Russia and Ukraine where in a single anti-religious campaign, over 100,000 members of the Orthodox church clergy were killed, and many very significant cathedrals such as the Christ the Saviour in Moscow (which took decades to plan and build) were destroyed. About every church in Russia (at the time, numbering ~30,000) was closed, and so many were looted, the clergy, the monks, the nuns, the bishops shot, sentenced to forced labour camps in among the harshest climates on earth under conditions to inhumane to be called simply dismissed as ‘inhumane.’
I’m aware the communists openly murdered people and falsified charges against those they couldn’t openly murder.
But I didn’t have an idea about how far reaching some of these anti-religious campaigns were, and the information out there on them amounts often to summaries (such as body counts) or doesn’t provide enough of an emphasis on the events that took place.
The valuables and lives lost, the specific churches closed even on national levels (not just local like this church) is not the kind of information that can always be so easily found.