iPhone 15 pro cracking easily

Glass if it hits a hard object even from a short distance can certainly break or shatter. It's easier to break any iPhone if it is not in a protective case. I'm sorry it happened to you, but accidents happen.

Apple can replace, for a price the back glass on your iPhone. See this link for pricing --> iPhone Repair and Service - Apple Support

If you have AppleCare+, Apple will repair your phone for a $29 fee (U.S.)

Otherwise, the normal estimate for repairs would be about $170 (U.S.)

titas18 wrote:

Im in Europe so we don’t have Apple care and the price to change it here is ridiculous 220

No one here can help you with that.