Easy Vegan Potato and Corn Chowder

Name: Easy Vegan Potato and Corn Chowder
Ingredients: 1 tablespoon vegan butter or light oil; 2 medium carrots, (peeled and chopped); 2 ribs celery (chopped); 1 yellow onion, (chopped); 3 cloves garlic, (minced); 1/4 cup all-purpose flour ((use all-purpose gluten-free flour if preferred)); 1 teaspoon dried thyme leaves; 3 large white or yukon gold potatoes (about 1 1/2lbs) (peeled and diced (4 cups chopped)); 2 cups vegetable broth; 2 cups plant-based milk ((such as soy or almond)); 3 tablespoons nutritional yeast; 1 cup fresh or frozen corn kernels; 1 teaspoon salt ((or to taste)); 1/4 teaspoon black pepper ((or to taste))