Question about Siemens GS36NAWEP

How is it that freezers of several brands (Siemens, Bosch, etc.) are perfectly identical (identical doors and handles, identical control panel, identical drawers and ice maker, identical cooling elements, etc.), only the brand logo changes? Compare this model with this one for example: https://www.galaxus.ch/fr/s2/product/bosch-serie-6-gsn58awdp-congelateur-autoportant-d-autonome-366-l-congelateur-16220978 I have a Bosch freezer and a Siemens freezer, and apart from the brand logo, it is impossible to tell the difference.