It’s different. What exists in Poland and most other places are digital copies or versions of the physical documents that you just show when you’re asked to. Apple, here, just implemented a way to present the official ID using nfc just like when you pay with Apple Pay or your contactless card. No information is shown on the iphone or apple watch screen anymore, just a generic card image (as shown in the article). The ID info just gets transmitted via nfc when the device is tapped on a designated nfc reader. Plus, this is built into iphones, no need to download any app.