this problem persists, even with newer flagship devices, like the Mi 8.
LTE 2CA and 3CA of B3 B7 B20 are not available which dramatically limits speeds in city areas… down to <5 MBit/s where, at the same location and time, my OP3 gets ~40 MBit/s :-)
that is just sad…
Obviously the Mi 8 hogs on...