How do I make my Find My icon appear on my iPhone XS screen. I see the Find Mu on my icloud

Welcome to the Apple community.

Go to the home screen on your phone and tap the centre of the screen and slide your finger down it, you can then type "find my" in the search on the phone will find it for you.

The new "find my" app will find both people on devices, look at the bottom of the screen, you can choose which you are looking to find.