I went to the Internet settings and changed "preferred network type" from "5G (recommended)" (default) to "4G". The other options offered were "4G only" and "5G or 4G only".
However, after pressing "4G" it returns to the Internet settings where it now says that the current setting is "4G only". But I don't want it to be "4G only" and that's not what I selected. I want it to prefer 4G, as I'm hoping that it might improve the horrendous battery life this phone has on a mobile connection, but I still want it to connect to 5G/3G/2G if there's no 4G connection available.
So I'm wondering if this is just a bug? That the settings app shows the current setting as "4G only" although I specifically asked for "4G" (as it: 4G is preferred) and not "4G only"