So I've got pairs of NRF24L01 transceivers working on Uno/Nano and Leonardo/Micro boards just fine, but when I try to use my Nano Every it fails to receive, and that includes the ACK back from a transmission so a Write is not fully successful as well. I'm using the Arduino provided RF24 library.
Using an external 3.3V power supply. Without that it can't even successfully transmit. I've tried replacing the transceiver modules although they do work with other Arduino boards.
I'm suspicious that there is something about the RF24 library that is not compatible with the ATmega4809, so I just want to hear that someone has gotten it to work with that library. In that case I'll look at this more deeply, otherwise I'll just say it's incompatible.