Instant Pot Clam Chowder

Name: Instant Pot Clam Chowder
Ingredients: 4 medium potatoes, peeled and cut into 1/2-inch cubes (about 5 cups); 1 medium onion, chopped; 2 celery ribs, chopped; 2 medium carrots, chopped; 4 garlic cloves, minced; 1 bottle (8 ounces) clam juice; 1 cup chicken broth; 1 teaspoon dried thyme; 1 teaspoon salt; 1/2 teaspoon pepper; 2 cans (6-1/2 ounces each) minced clams, undrained; 2 tablespoons all-purpose flour; 1 cup heavy whipping cream; 4 bacon strips, cooked and crumbled; Optional: Oyster crackers and fresh thyme