Hi Ad1tya_s
welcome to the Apple (user-to-user) Community!
Re: AirPods Pro 2: there is no option to take hearing test. Is this not available yet?
You may need to check whether or not the test has been approved and made available in your country or region:
You can check if your country is listed for:
Hearing Test feature
Hearing Aid feature
Hearing Protection feature (This feature is only available in USA and Canada)
See: AirPods Pro 2 - Hearing Health Feature Availability - Apple
Also: The AirPods Pro 2 need to have the latest firmware installed: you can check if they need updating:
See: About firmware updates for AirPods - Apple Support
The iPhone needs the latest iOS 18 version installed: About iOS 18 Updates - Apple Support says iOS 18.2
(NB: Is always wise to back-up data before updating)
All the best :-)