Instant Pot Corn Chowder

Name: Instant Pot Corn Chowder
Ingredients: 6 slices bacon (cooked and diced, divided); 4 cloves garlic (minced); ½ medium onion (or about ½ cup, diced); 4 cups red potatoes (diced about 1 inch squares); 4 cups corn (frozen, or canned (drained)); 5 cups chicken broth (or stock); ¼ teaspoon poultry seasoning; ½ teaspoon red chili flakes (optional, or to taste); ½ teaspoon salt; ¼ teaspoon pepper; ¾ cup light cream (such as half and half); 2 Tablespoons flour; green onion (finely chopped, as garnish)