How do I get access into an iPhone 11 running iOS 16 or 17 without its password and without losing **ANY** data?

I'm sorry if this question has been asked before, but, I need to get

access to an iPhone 11 running iOS 16.X or 17.X (I'm not sure which one it's running) without its passcode, it belonged to my sister who has passed away and i really need to recover some data that's in the phone.

Thanks.