Learning to use the natural curve that’s present in every cast produces better drag free drifts than does a straight line.
It takes proficiency on both the forehand and backhand.
I’ve seen some anglers resist casting backhand, just because it’s uncomfortable at first. But, by avoiding the backhand, half of the delivery options are gone. So, open up the angles, understand the natural curve and get better drag free drifts on the dry fly . . .