sudo journalctl -b | grep redpine
If you get output then you have the card that was shipped with the first N phones.
sudo dmesg | grep brcm
If you get output then you have the card that is now shipping.
OR
See New Post: Shipping new SparkLAN Wifi cards with Librem 5 - #25 by dos for another approach,
basically: nmcli -f GENERAL.DRIVER d show wlan0