@Stefan-de-Lange the PCBs for testing are open on Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).
https://www.akoriot.com/akoriot_akor4range_l/
You have the freedom to copy it and re-measure it. But you will get the same result. Sometimes NB-IoT is better and sometimes LoRaWAN. You should also read before you judge something.