I wonder how this might look like, if all animal-based products were taken out of the equation and a purely plant-based food supply-chain was put in place inste

I wonder how this might look like, if all animal-based products were taken out of the equation and a purely plant-based food supply-chain was put in place instead. I'd guess overall agricultural landuse would drop to 1/4th or so due to the huge inefficiencies of animal-based products, but would have to dig for proper numbers at e.g. Our World in Data.