ChatGPT (woke AI):

Vegan farts generally produce less methane than those from omnivores. Methane production in the digestive system comes largely from the fermentation of foods in the gut, especially those containing complex carbohydrates and fiber. While vegans typically consume more fiber-rich foods, which could lead to more gas overall, the type of gut bacteria that break down plant-based foods tend to produce more carbon dioxide and hydrogen rather than methane.