Place sliced zucchini in a bowl and toss with salt; let sit for 10 minutes to extract excess moisture and prevent sogginess.
Rinse zucchini under cold water to remove salt and pat thoroughly dry with paper towels to ensure a proper sear.
Heat a wok or large skillet over high heat until shimmering; add vegetable oil and swirl to coat the surface.
Add minced garlic and ginger to the oil; stir-fry for 15 seconds until aromatic.
Add the dried zucchini to the wok and stir-fry for 2 minutes, tossing constantly to maintain high heat contact.
Pour in light soy sauce, dark soy sauce, sugar, and white pepper; stir-fry for 1 minute until the sauce reduces and glazes the vegetables.
Remove from heat and immediately drizzle with toasted sesame oil to preserve its volatile aromatics.
Transfer to a plate and garnish with toasted sesame seeds and sliced green onions before serving hot.