Never use salt and soy sauce in the same dish. Soy sauce by its very nature is very salty. Use it sparingly, and it does add a wonderful umami element to your dish. Works great with rice noodles, chicken, beef, pork, veggies, and is complimented very nicely with sesame oil, shaoxing wine, rice wine vinegar, and hoisin sauce. Chinese cooking is a complete game changer and it’s so damn easy.