Make Sure You Brown Your Meats First
When you place ingredients into an instant pot, crockpot, slow cooker, or whatever pressurized cooking device you like, it's important to recognize that the flavor that you put into it is the flavor that you are going to get out of it. Do not expect your chicken legs to come out browned and crispy. If anything, expect the opposite. You need to brown your meat before you place it in any slow or pressure cooker if you want that flavor in there.