Comment by toast0

Sub6 is more or less the same frequencies as 4G. I know there's more low frequency (additional spectrum formerly used for over the air TV), and there might be some slightly higher frequency too, but this is the general purpose stuff. The mmWave stuff is really for locations with dense crowds like stadiums and maybe airports and busy train/transit stations.

5G is still better than 4G on sub6 for lots of reasons, but yeah, it doesn't have the oodles of bandwidth that 5G promised.

Being able to put more sub6 base stations in more places is still good though. There's plenty of areas with poor coverage, and sometimes the reason there's no coverage is the aesthetics of the base stations are poor. Blending in helps. Which is why some antennas look like weird saguaro or palm trees and pine trees. It might be nice to have antennas in windows in office buildings instead hanging on the side, and it might be easier to install as well.