Applications of reactionless flight as a superpower?

Let’s say you have true Superman-style flight, able to move through the air without any discernible means of propulsion. In fact, I’ll take it a step farther and offer up the explanation that perhaps your body contains a nested warp bubble that makes you a human Alcubierre drive. When you go up, up, and away, you waste no propellant mass and don’t “accelerate” in any traditional sense. In theory you could achieve relativistic or even superluminal speeds but we wanna keep this to in-atmo flight for the time being, so that’s a no-go.

What could the esoteric applications of this look like? Would a person simply being moved by such a warp bubble still experience the effects of acceleration since the bubble isn’t totally enclosing their body? What could you do with an ability like this if you could also alter the size of the bubble or create other bubbles outside your body?