I don't actually read either of your linked studies to support what you say. But be that as it may, I think fiber is also satiating. It's just difficult to hit my macros when eating all broccoli. Broccoli, butter, and steak, on the other hand, is a nearly perfect meal. I get the sense you're invested in a plant-based diet. Good for you! I'm sure there are way to engineer the outcomes you want with plants.