Apple has resumed sales of iPhone 8 and iPhone 7 (and their Plus versions) in Germany, following a sales ban in December last year. The ban was based on an infringement on a Qualcomm patent on envelope tracking.
The newly-stocked phones only feature Qualcomm modems, Cupertino has stated that it will no longer use Intel modems in iPhones sold in Germany. The problem wasnt even the Intel chips themselves, but the additional chips from Qorvo that they required.
China similarly banned iPhones 7 and 8, but Apple never stopped selling those models there as it’s still appealing the decision. Note that the iPhone X was also involved, but since it was discontinued, the bans didnt affect it (also, the bans applied only to Apple stores and not third-party sellers).
The current generation of iPhones XS and XR also use Intel modems as Apple moved away from Qualcomm. Qualcomm continues to supply modems for older models, however.