Cut zucchini into fry shapes about 3 inches long and 1/2 inch thick; remove seedy centers if using large zucchini.
Place zucchini in a colander, sprinkle with 1 teaspoon salt, and let sit for 10 minutes to draw out moisture.
Pat zucchini completely dry with paper towels, pressing firmly to remove surface moisture.
Set up three bowls: flour in the first; beaten eggs mixed with water in the second; panko, Parmesan, Italian seasoning, garlic powder, and 1/2 teaspoon salt in the third.
Dredge each fry in flour, dip in egg wash, then press into the panko mixture to coat all sides.
Arrange coated fries in a single layer in the air fryer basket (use a wire rack if available) so pieces don’t touch.
Air fry at 400°F for 10 to 12 minutes, shaking the basket halfway through, until coating is golden brown and Parmesan smells toasted.