In a bowl, mix the softened butter, minced garlic, Italian herbs, salt, and pepper until well combined.
Spread the garlic butter mixture evenly over the cut sides of the French bread.
Sprinkle the shredded mozzarella and grated Parmesan cheese generously on top.
Set your air fryer to 350°F (175°C) for a few minutes while you prepare your bread.
Place the prepared bread halves in the air fryer basket, cheese side up.
Air fry for 6-8 minutes, or until the cheese is melted and bubbly and the edges are golden brown.
Remove from the air fryer, let cool slightly, then slice and serve warm.