01 - Set the Instant Pot to Sauté mode and heat olive oil. Add onion, carrots, and celery; cook for 3 to 4 minutes until softened.
02 - Incorporate minced garlic and sauté for an additional 1 minute until fragrant.
03 - Add chicken, chicken broth, salt, pepper, bay leaf, thyme, and rosemary. Stir thoroughly to combine ingredients evenly.
04 - Seal the Instant Pot and cook at High Pressure for 10 minutes.
05 - Allow a natural pressure release for 5 minutes, then perform a quick release for any remaining pressure.
06 - Remove the chicken pieces and shred them using two forks.
07 - Add egg noodles to the pot and return shredded chicken. Set Instant Pot to Sauté and cook for 5 to 6 minutes until noodles are tender.
08 - Stir in chopped fresh parsley and lemon juice if using. Adjust seasoning to taste.
09 - Ladle soup into bowls, garnish with extra parsley if desired, and serve hot.