Set the Instant Pot to the sauté function. Add olive oil and let it heat for about 1 minute.
Season the chicken thighs with salt, pepper, onion powder, paprika, thyme, and rosemary. Add the seasoned chicken to the pot and brown for about 3-4 minutes on each side. Remove the chicken and set aside.
Add the minced garlic to the pot and sauté for 30 seconds until fragrant.
Pour in the chicken broth, scraping the bottom of the pot to deglaze and remove any browned bits.
Return the chicken to the pot and add the halved baby potatoes on top.
Close the lid of the Instant Pot and set the valve to sealing. Cook on high pressure for 10 minutes.
Once the cooking time is complete, allow for a natural release for 5 minutes, then carefully switch the valve to venting to release any remaining pressure.
Open the lid and stir everything together. Garnish with fresh parsley before serving.