Good afternoon Fahro-,
Welcome to the Apple Support Communities!
I understand you are hearing a "clicking" sound when you swipe on the display on your iPhone 11. This is most likely the Haptics that you are experiencing. Try changing some of the settings on your iPhone to change this behavior.
- Open the Settings app on your iPhone.
- Tap Sounds & Haptics
- At the top of the screen you will see options for Vibrate
- Scroll towards the bottom of the screen and you will see options for Keyboard Clicks and the sound your iPhone makes when you lock it.
- At the bottom of the screen you can turn off the System Haptics
Change iPhone sounds and vibrations - iPhone User Guide - iOS 13
Try adjusting these settings and let me know if you need more help with this.
Take care.