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 clam juice (8 ounces); 1 cup chicken broth; 1 tsp dried thyme; 1 tsp salt; 1/2 tsp pepper; 2 cans minced clams (undrained, 6-1/2 ounces each); 2 tbsp all-purpose flour; 1 cup heavy whipping cream; 4 bacon strips (cooked and crumbled); Optional: Oyster crackers and fresh thyme