Are Christian metal bands preachy?

Yea basically as above... I've had loads of recommendations of bands to listen to and when I look into them, it seems a lot of them are described as Christian metal.

I'm very much an atheist and so have no desire to be preached at when listening to music however, I'm probably missing out on some shit hot artists so I'm trying to get past this (i mean if the overall answer here is yes they're preachy, then I'm not really gonna try very hard).

No shade to anyone here who's religious, without getting too into it, I have no problem with any individual practicing any faith, I just have a serious dislike of organised religion as a whole.