It's not as interesting... three of my grandparents passed away before I started memorizing things so I don't know that much stuff first-hand. But basically... At least where my parents grew up, old folk religions (again... just referred to Mi Xin now) used to be quite common. The last generation (starting 30-40 years ago) just don't really practice them anymore, so my generation are full of complete non-religious people; not even any folk religion. Not sure if it has anything to do with that region being the manufacturing hub of China for a while... so maybe CCP had a much stronger influence there

Beijing is kinda duh, the government is there so... I mean it is the city that destroyed nearly all of its Hu Tongs and historical housing and stuff to build highrises/business districts, how would people imagine Beijing treat its less tangible cultural norms

There was a new religion purge that started sometime 10-15 years ago... but I think it was separate. I just remember there was a Christian family friend whose church was in a bit of a trouble