Solution

You are shown a picture of the board game Carcassonne with chess pieces on it, as well as an URL to a video. The music of the video is "Mario Elevator Music" and can be found using e.g. Shazam. That music title (and it's filename ThereAreFourOfUs.mp4) refers to four devices next to all elevators in Lobby Syd, where the huge Mario figure is located. Each device has 2 smells, as well as a label with a chess position. The smells match labelled locations on the board game picture. The chess position matches the starting position of a chess piece placed on the board game. If you draw lines from the relevant chess piece and its associated smells, you can interpret it as a Semaphore letter. For instance, one set of devices had "E1" with garlic and citrus smells. This refers to the white king's starting position, which is placed horizontally in the middle of Garry's Garlic Knots and Caesars Citrus Fruits. Thus, the semaphore letter is R. Doing this for all 4 devices and by anagram solving it, you get the answer pear.