Cook the Noodles : Bring a large pot of water to a boil and cook lo mein noodles according to package instructions. Drain, rinse with cold water, and toss with 1 tbsp sesame oil to prevent sticking. Set aside.
Marinate the Pork: In a bowl, combine sliced pork with soy sauce, cornstarch, rice vinegar, and sesame oil. Mix well and let marinate for 10–15 minutes while you prepare vegetables.
Prepare the Sauce: In a small bowl, whisk together soy sauce, oyster sauce, hoisin sauce, brown sugar, and chicken broth. Set aside for later.
Cook the Pork: Heat 1 tbsp vegetable oil in a large wok or skillet over medium-high heat. Add the pork and stir-fry for 3–4 minutes until browned and just cooked through. Remove and set aside.
Stir-Fry Vegetables: In the same wok, add another drizzle of oil if needed. Add garlic, ginger, bell pepper, carrots, and snap peas. Stir-fry for 2–3 minutes. Add cabbage and green onions; stir-fry another 2 minutes until slightly wilted but still crisp.
Combine Everything: Return the cooked pork and noodles to the wok. Pour in the prepared sauce and toss everything together over medium-high heat for 2–3 minutes until heated through and well coated.
Taste and Adjust: Add more soy sauce or sesame oil if needed. Serve hot.