I don’t think many Catholic in the US know much about it, including me. I have heard of some problems however. I have heard of some sort of laws that require Churches to provide services in the language of the people who go to the Church. This could mean quite a few different Masses that would need to be provided. This can be a great hardship for some Catholic parishes with only so many priests being available. This isn’t a suggestion, but a requirement by law.
I have also heard of laws that prohibit teaching that homosexuality is a sin. This would be some sort of hate crime. This is a major problem with the Church in Canada.
Also laws against teaching things like abortion and birth control being a sin.
I have heard that some Bishops have threatened to close down their Catholic schools than be silenced by the government about what they can teach regarding faith and morals.
That is all I have heard and I don’t know how accurate this information is. As far as it being a quiet revolution, it sure is. Not many know about it. It is a form of persecution of the Church.