OXO cubes are vegan as they are meat free and plant based flavor stock.
Vegetarians do not eat beef stock because beef stock is made of meat so and vegetarians do not eat meat or animal products.
Beef stock and broth are similar but not the same.
The beef stock is made of bones and the broth is made mostly from vegetables and meat.
Also using bones in stock creates a thicker liquid while the broth tends to be thinner and also more flavorful than beef stock.
Chicken bone broth is better than the beef bone broth.
The chicken bone broth has slightly higher protein content than beef bone broth does and chicken bone broth in my opinion tastes better than the beef bone broth as well.
When using chicken bone broth make sure you add the feet to it to make it taste much better as it won't be as good without the addition of the feet to the chicken bone broth.
Beef bone broth is also good but not as tasty or good as the chicken bone broth is.
I always prefer to use the chicken bone broth over the beef bone broth.
Drinking some of the chicken bone broth is also good for a cold or even flu or when you have a sore throat.