Yea, chameleons are more comfortable with a warm shower than a literal soak. But essentially the effect is the same, as are the benefits. I just have my misting nozzles set to spray for a long time but some people will take their chameleon on a plant into their shower/bath tub and give them a warm shower that way.
Obviously, don't spray your chameleon directly with your shower head, but typically bouncing the spray off the wall will produce a much finer mist. I use a pump sprayer, personally. And also, when I say warm I really mean luke-warm, because chameleons feel temperature differently than we do. So warm for us would be really hot for them.