Fascinating. This is an input that I hadn't considered.
However "Vegan" things is definitely a tricky subject… for example cars often have leather seats and/or steering wheels. And it can be quite hard to get a "decent trim" car, and _not_ get leather. Tesla do offer "non-animal-leather" seats, but not all manufacturers have such an option.
There are farmers experimenting with “vegan vegetables”: vegetables grown without manure, but plant-based fertilizer only. E.g. https://www.partyfortheanimals.com/inspiring-pig-farmer-beco...