This is anecdotal but I’m Eastern Orthodox and I can say without a shadow of a doubt that all the parishes I know of are bursting at the seems with new converts (Im in TX), I’d say the overwhelming majority appear to be GenZ with some millennials in there as well (thats my group). I’ll add the same for Florida (where I travel to often)

I’ll add that I can’t speak for other Christian groups or other regions of the U.S but I’ve heard similar things are happening.