Locked out if my iPhone 14 pro black screen

You might try a Forced Restart, no guarantee but worth a try...

Force restart iPhone - Apple Support (CA)

If that doesn't help, it may be time to make an appointment at the nearest Apple Store for an evaluation and explanation of your options....

Apple Store - Find a Store - Apple

Doesn't look black. Not sure what you mean. If nothing happens when you swipe up then try a Forced restart

 Force restart iPhone – Apple Support (UK)