You can use Worcestershire sauce in place of soy sauce for salty, umami flavor.
However using Worcestershire sauce in place of soy sauce will be stronger and tangier, so if you do use Worcestershire sauce in place of soy sauce you may need to dilute the Worcestershire sauce, using around 3 parts of Worcestershire sauce to 1 part water for soy sauce.
And also use the Worcestershire sauce in cooked dishes like stir fries or marinades in which flavors meld, as Worcestershire sauce is not a perfect 1"1 match for Asian dishes.
To use Worcestershire sauce in place of soy sauce, dilute the Worcestershire sauce by mixing about 3 tablespoons of Worcestershire sauce with 1 tablespoon of water for every 1/4 cup of soy sauce that is needed.
And some people also suggest a 1:1 swap is also possible for cooked dishes, but the Worcestershire sauce can be overpowering, so you should start with less and add more to your tastes.
The Worcestershire sauce works well in gravies, marinades, burgers and stir fries in which it's strong flavor can blend n.
And the Worcestershire sauce also brings more tanginess, sweetness from the molasses as well as complex spice as a result of vinegar, anchovies and spices, which make it different from soy sauce's simple fermented soybean taste.
Although you should avoid Worcestershire sauce if a recipe you're using relies heavily on the specific flavor of the soy sauce, like in traditional sushi, or even delicate dipping sauces, as Worcestershire sauce will change the characteristics too much.