In a small bowl, whisk together soy sauce, dark soy sauce, fish sauce, oyster sauce, sugar, water, and white pepper until well combined.
Heat 1 tablespoon oil in a large wok or nonstick pan over medium-high heat. Add the shrimp (or protein of choice) and stir-fry until just cooked through. Remove and set aside.
Add another tablespoon of oil to the pan. Stir-fry the garlic and Chinese broccoli until just tender, about 1-2 mins. Push to the side of the pan, crack in the eggs, and scramble until mostly set.
Add the fresh rice noodles and pour in the sauce. Toss everything gently to coat the noodles evenly, about 1-2 mins, and noodles are slightly charred. When noodles are nearly done, add back protein, add a pinch of salt to taste, and toss everything until mixed together. Transfer to a plate and enjoy.