Look the LHGG lte it is obsolete in the european market, having LTE-Advance in western europe you always have to carrier aggregate more than two bands to have a decent speed nowadays, usually it's B7+B3+B1+B20 but the LHGG can't unless you fix it yourself.
As you can see in the map below 5G NSA is being deployed under the n77 and n78 band, right now only the Chateau 5G can connect, but having those tiny, low gain half-assed antennas you would have to refurbish old ubiquiti rocketdish M3 antennas to have any usable real world range, that's why we need a lhg 5g.