Buildsrods,
I think whether or not your ww flyfishing is "laid back" depends a lot on your personality. "Laid back" to date is not in my vocabulary. Maybe when I get a little older. Whether I'm wading, tubing or fishing from my float tube, I'm usually moving if I'm not catching fish. I like to cover a bunch of water whether I'm trout fishing or ww fishing. When in Colorodo, if possible, I'll power walk for an hour up stream usually before I even start fishing just to get away from others.
But to answer your question, I do agree with you that in general trout fishermen seem to be a little more, shall we say, "intense" than ww anglers unless, of course, you consider ww tournament fishermen who are very intense.