It may work, but as the RFM95’s run on 3.3V and the Nano runs on 5V, mostly people get away with it, sometimes it doesn’t.
I’d use this: GitHub - descartes/Arduino-LMIC-example: Known good Arduino ATmega328 + LoRa chip LoRaWAN node but swap the LMIC over to GitHub - matthijskooijman/arduino-lmic: ⚠ This library is deprecated, see the README for alternatives. and you can now use the latest Arduino IDE. Start out simple with the LMIC ABP example.