It was 50+ years ago. The "whole congregation" part, as I remember it, never happened because it was swamped by the appalling post-V2 tsunami.
But anyway, the whole congregation basically "saying" what the acolytes said, and "chanting" what the choir was chanting, was what was then called "Liturgical Reform": the "Dialogue Mass." I'm still for it.
50+ years ago, I hadn’t been born. I recently concluded that I’m not Catholic enough for those who are Catholic enough. I don’t care if the choir is singing Halestorm songs in Spanish and the priest is speaking Swahili. The only liturgical concern I have is whether my children need to be removed before someone clubs them with a chair.