I've looked everywhere, but can not find it on my A54 5G. It used to be there. There have been updates since. Is it there to be found or has it been removed?
The quick access thing I'm not sure about but it was removed from the power save menu yeah. There's no real reason to disable 5g. It doesn't really use any extra power or harm your device in any way.
Really early 5g sorta did, so power save mode would disable it.
You can disable it in the mobile networks part of settings, but there's no reason to