I believe the amount of apple devices sold in comparison to other devices is very low as Apple has stores selling directly to customers. Also you can probably get your apple device repaired at the Apple store even if you purchased it at digitec/galaxus. That may heavily skew the numbers.
That's what I'm saying, for Apple it's much easier to contact Apple directly (or any authorized repair shop) to have your device repaired or replaced. It may be possible for other Brands but their network is much smaller, so you usually end up going to the shop you bought it.
