ThatOwlWoman
Leftist Vermin
The Protestants I know make a big deal about it. Especially the Fire and Brimstone types.
That Book was never a thing in the Lutheran church I was raised in, nor in the other mainstream Christian churches back then. I did find it fascinating though as a kid. My mom was a Sunday school teacher but also big into prophesy, precognition, ESP, and other things of the spiritual world. (She had Jeanne Dixon and Cayce books along with others.) So of course I read all those and thought that Revelation was part and parcel of that stuff. It was really cool to me as a teenager even though I recognized at the time that such forms of prophecy were, um, well, not too believable to put it kindly.
In general teachings and belief in that Book are not a part of mainstream Protestant theology nor of Catholicism. It's huge in fundie Xtian circles though.