Open the Instant Pot. Using tongs, transfer the chicken skin-side up to the baking sheet, and set aside. Press the "Sauté" button on the Instant Pot and set the timer for 10 minutes, stirring occasionally and mashing the garlic in the sauce with a wooden spoon, if desired, so that the sauce can reduce.
Broil the chicken until nicely browned, rotating the baking sheet as needed, 3 to 5 minutes. Keep an eye on it to make sure it doesn't burn. When the sauce is reduced, taste and season with salt and additional pepper as needed. Discard the bay leaves. Serve the chicken thighs with steamed white rice if desired, and ladle the sauce over the chicken and rice and top with the scallions.