The standard iPhone 14 has a rear-glass repair guide in addition to battery and screen guides; the Pro models use different enclosure construction.
What to check before buying
Rear enclosure
iFixit lists rear-glass replacement separately from display repair. This matters for a phone with damage only on the back, where screen replacement would address the wrong component.
Battery and display
A worn battery and a broken OLED display have their own guides. Model-specific adhesives and reassembly steps still matter after opening.