A new HAT has brought 5G and GPS connectivity to the Raspberry Pi. Designed for any single-board computer with a 40-pin header, the Waveshare SIM8200EA-M2 5G HAT supports up to Sub-6 5G. The HAT should be compatible with Android, Linux and Windows.
https://www.notebookcheck.net/Raspberry-Pi-Bring-5G-and-GPS-connectivity-to-the-popular-single-board-computer-with-a-Snapdragon-X55-based-HAT.498311.0.html