Instant Pot Potato Corn Chowder

Name: Instant Pot Potato Corn Chowder
Ingredients: 4 slices bacon; 2 Tablespoons unsalted butter; 1 cup chopped carrots; 2 medium russet potatoes, peeled and cubed into small cubes; 1 cup sliced celery; 2 cups frozen corn; 1 cup chopped yellow or white onion; 2 garlic cloves, minced; ½ cup cornstarch, divided; 1 teaspoon ground paprika; 1 teaspoon ground cumin; ¾ teaspoon kosher salt; ½ teaspoon ground black pepper; 4 cups chicken broth; 1 cup half and half or dairy-free whipping cream; 2 Tablespoons chopped parsley (optional)