Drain and chop artichokes. Set aside.
In a 6 qt Instant Pot, combine: cream cheese, frozen spinach, chicken broth, artichoke hearts, sour cream, mayonnaise, minced garlic, onion powder, paprika, and hot sauce.
Stir to combine.
Lock Instant Pot Lid into place, and set valve to the "sealing" position. Turn pot on manual high pressure for 5 minutes.
Once time is up, turn valve to “venting” to quick release the pressure. Once the pin drops, remove the lid, and add the parmesan, mozzarella, and sharp cheddar cheese.
Stir cheeses in until melted, about 2 minutes.
Garnish with fresh parsley or green onion
Serve immediately, with chips, slices of baguette, etc.