Set Instant Pot to "saute" and let it heat until it reads "hot."
Drizzle olive oil, add carrots, celery, and onion. Saute for 2 minutes, then add garlic for 1 more minute.
Pour in broth, add thyme, rosemary, bay leaf, salt, and pepper. Add chicken. Turn off saute mode.
Cover, set vent to "sealing," choose "manual" for 10 minutes.
Once done, let the pressure release naturally for 10 minutes, then use the quick release.
Transfer the chicken to a cutting board. Cancel Instant Pot, and switch to "saute."
Add noodles and cook uncovered for 5-6 minutes until tender.
While the noodles cook, shred the chicken. When noodles are done, stir in lemon juice, parsley, and shredded chicken. Serve warm.
Note: For less grease, remove the skin from the thighs. Start from a corner, pull off the skin, and use a knife to trim any stuck portions. Enjoy your soup!