If someone asks, "Do you know [where to find] this icon?" they are asking for the source of the graphic asset.
If you are asked this question online (e.g., "Do you know this icon from the 90s?"), it is often a nostalgia trivia question. Take a good look at the clothing, hair, or background to get clues! do you know icon
In a tech context, an "icon" is the small graphic you click to open an app or perform an action (like a Trash Can, a Save floppy disk, or a Hamburger menu). If someone asks, "Do you know [where to find] this icon