Hey, I like super low water levels as the fish are concentrated!
That said...I don't do a lot of trout fishing so not sure the implications on local streams
In Tampa where my Dad lives, the small ponds get concentrated in early summer, due to drought. and I have personally landed many 10+ lbs bass consistently.
In NJ, I love when Spruce Run is WAY, WAY, and WAY down and have had many of my best days ever when the fish are concentrated on a larger body of water for SM, LM Bass, pike, etc