Meat is more nutritious than soup in stews, and you get more high-quality protein when you eat meat.
A stew is a dish obtained by simmering a range of ingredients over a long period of time. The meat itself is more nutritious than the soup, because most of the muscle fiber content in the meat is difficult to dissolve out, and most of the protein remains inside the meat after the soup is made.
So the vast majority of the soup is some free purines, fatty acids and a few amino acids, salts, etc., containing less protein content.
Meat contains protein, fat, vitamins and minerals. Drinking soup while ensuring that the meat itself intake, in order to be able to balance the nutrition, is conducive to good health.