You have the right to repair your Apple device on their terms, with their overpriced tools, with their overpriced parts, following their restrictive terms, and authenticate almost every repair with Apple.
If you try and get a part from another supplier, or source your own genuine parts from dead devices that’s going to cause “bugs”, like faceID or auto brightness not working if you have the audacity to repair “their” device.
They’re also going to work like hell to use any loophole that allows them to deny self repair.
Remember, it’s Apple’s device, you’re just using it.
Yes, this reads jaded as hell. But given all the things Apple have done to deny self or 3rd party repair it’s hardly lies.