Using the highest sauté or browning function, heat oil in an electric pressure cooker until shimmering. Add onion and cook until softened, about 3 to 5 minutes. Stir in garlic, paprika, cardamom, and red pepper flakes, cooking until fragrant, about 30 seconds. Stir in broth and freekeh.
Sprinkle chicken with salt and pepper. Nestle the chicken, skin-side up, into the freekeh mixture. Lock the lid in place and close the pressure release valve. Select the high-pressure cook function and cook for 5 minutes.
Turn off the pressure cooker and quick-release pressure. Carefully remove the lid, allowing steam to escape. Transfer the chicken to a serving platter and discard the skin if desired. Tent with aluminum foil and let rest while finishing the freekeh.
Gently fluff the freekeh with a fork. Lay a clean dish towel over the pot, replace the lid, and let sit for 5 minutes. Season with additional salt and pepper to taste.
Transfer the freekeh to a serving platter with the chicken. Sprinkle with chopped cilantro, toasted sesame seeds, and minced preserved lemon. Drizzle with extra olive oil and serve.