[C] Cloudburst isn't the same as a Controller's smokes. It is used to quickly take space, and create quick windows of timing for you and your team to make plays.
Jett's [Q] Updraft can be used in combination with your dash to allow you to quickly get to certain elevated positions.
Jett has the passive ability to float on descent after jumping by holding Spacebar. This allows her to traverse between some elevated positions.
Jett's [E] Tailwind is a multi-purpose movement ability that allows you do two of the most powerful things in Valorant. Quickly take space by dashing into an area of the map, and quickly dash out after playing an off angle.