8202g is designed to work with only two antennas and I can confirm that it works in 5G with the ones L5 has. Are they the most optimal for that is another question, but at least the combo seems work adequately. 5G using those special frequencies for max data speeds is not available with this modem (to my understanding they aren’t implemented in many devices, but I could be mistaken on that) and neither could L5 handle those speeds (limited to USB transfer speed - the modem (at least) and antennas should be able to give it more than it can handle, if network and subscription limits allow).