I lost my iPhone 11 pro just now how will I locate it

From any Mac or PC, login to iCloud.com using your Apple ID and password. Then click Find My and the location of the iPhone should be displayed assuming it is powered on and you had enable Find My on the device.

Find My - Official Apple Support

Or, call it from another phone and follow the ring.

And that's why you're a level 9! 👍🏽

The wife and I have found our own iPhones that way a couple of times. 🙂