how to use safari web browser app on iphone 12Pro max without Safari opening up in Google Search Engine Google

How to use safari App on iPhone 12 Pro Max as my Web Browser of choice , And it not open in Google Search ? I followed the instructions - and it keeps returning to google !

I updated to most recent iOS 17.5.1 and it’s set to auto update .

took my iPhone to Apple Store had them set it up to Safari web browser & after a day it reverted back to Google ! I signed out of my Google Browser ( & Still 😡 grr)

really ?? Why have SAFARI APP IF I CANT USE IT !