The Lúcio rollout is almost an art in itself, a sort of statement on the Lúcio's skill and creativity. These deployments have their uses in getting to the point quickly, but just as often they're gimmicks for an easy, Reddit-worth boop.
This latest rollout, discovered by Overwatch Reddit user u/Blitzz84, is for the Garden stage of Lijiang Tower. As with most Lúcio rollouts, this one begins with the use of Amp It Up on the speed buff and wallriding out of the spawn room. From there, Blitzz84 flies to the building to the left of the spawn room.
One jump on that wall leads to a leap across to the main gate, then a brief tap on a wall jutting out into the moat around the point. Another brief ride on the outside wall of the point allows Blitzz84 to turn around the point, then launch themself across the moat on the other side of the point to boop any unprepared players on that team's bridge.
The rollout is safer than the standard window rollout and nearly as quick. Its main downside is the amount of time the Lúcio stays in plain sight, making boops less likely to work.