Apple's "right to repair" is tied to Apple parts and the Apple service mechanism. Each part has a serial and that must be linked to the rest of your hardware on

Apple's "right to repair" is tied to Apple parts and the Apple service mechanism. Each part has a serial and that must be linked to the rest of your hardware on Apple's side, or you'll get error messages and various stuff doesn't work like biometrics, blue light reduction, camera ML, etc. So yes they'll let a shop repair your device, or you can do it yourself, no problem. But you won't be buying even genuine Apple parts from eBay or pulling them from a broken device and reusing. You must, MUST, purchase directly from Apple at their list prices.