Preheat oven to 425°F (220°C). Pat chicken dry and season with salt, pepper, oregano, and basil.
In a skillet over medium-high, heat 2 tbsp oil. Brown chicken skin-side down 4–5 minutes until crisp; transfer to a baking dish skin-side up.
Toss zucchini with remaining oil, garlic, Parmesan, and red pepper flakes. Arrange around chicken in the dish.
Bake 20–25 minutes until chicken reaches 165°F and zucchini is tender; broil 1–2 minutes if you want extra browning.
Let rest 5 minutes, squeeze lemon over top, and serve.