I had not heard of 2.4GHz LoRa until I came across the Semtech SX1280. I was looking for a device or module that could do both LoRa and BLE.
It combines BLE and LoRa in the same transceiver by moving the LoRa frequency to 2.4GHz so that the antenna can be shared. Apparently it's been around for a couple of years. I was wondering if anyone on E14 has tried it and what their experience has been.
I have a RAK4631 that combines BLE with LoRa at the conventional frequencies (I use the US915 band). It uses an nRF52840 for BLE and an SX1262 for LoRa - and uses separate antennas... I was writing a blog post about it but it got sucked into the black hole of moderation.