Can't select 2g mode ...living in remote areas we only have 2g ..what crackhead developers are building this UIs

The notifications are not showing for the wake up screen...galaxy a16...read so many articles and everyone said to download an app...crazy a big name has this issue about wake up screen for the notofication

This is a basic feature missing...speed of the Internet or the network should be displayed ...had to install a separate app for this ...