See, Apple uses either Qualcomm's or Intel's telephony technology for the disputed iPhones. But in order to bring them back to Germany, the company leaves Intel's modems out in the cold and exchanges them with Qualcomm parts.
Qualcomm filed the lawsuit that caused the ban on a patent violation around envelope tracking, which is a feature that helps phones preserve the battery while transmitting and receiving wireless transmissions. To be clear, Intel's modems are not directly involved in the lawsuit. Qualcomm specifically called Apple's vendor and semiconductor maker Qorvo as the one who violated its intellectual property rights. It just happened that Qorvo's chips are only present in iPhone devices with Intel modems.
The German court with Qualcomm ordered the order in December 201
Although tech giant plays Qualcomm's game in the European country, it is far from being back on friendly terms with the equipment machine. It once said that Qualcomm is involved in illegal patent licensing practices to maintain a monopoly on mobile modem chips, and the statement a spokesman gave Reuters shows that there is still no love lost between the two:  "Qualcomm is trying to use orders against our products to try to make Apple undermine their extortionate demands."