IMHO.
In the S23U, there is an ON/OFF setting for 5G NSA. Also no use.
The A14-5G by default cannot get 5G - need to coax it.
Even if the signal is there, there is no function to choose it by default.
There are those band selection apps - not sure if they work or will cock up the OS.
Using the same ideology for TPG 4G - There are 2 bands available.
Download/Upload, one band is almost symmetrical and the other asymmetrical.
The choice of bands should be auto i.e. the best available.
So far, apparently, doesn't seem to be the case.
If one is connected to the more popular band, effectively down/up will be poor ( in my case ).
In the OS, there is no choice function available.
Same thing, there are those band selection apps - not sure if they work or will cock up the OS.