I’m into longer races, keeping the volume low is key for me. I see here only a marketing bubble. What really helps and is even cheaper is to replace maltodextrin with Vitargo S2. Even larger carb molecules reducing the water requirement. However, once through the stomach its just as easily split up as maltodextrin. A simple mix of 2:1 with fructose (even though I use slightly less fructose).
But in the end it’s a trial and error thing, whatever works for your GI.