Sounds to me like you are very misinformed. 4g / 5G / 6g aren’t...

Sounds to me like you are very misinformed. 4g / 5G / 6g aren’t better than each other they occupy different frequency bands on the spectrum. 4g is the lowest which means it has less bandwidth and less speed but it can travel much further than 6g. The only way you can change this is by increasing RF power or modulation techniques but this will only get you so far. It’s not smart to have 6g here except in capital cities where you need the bandwidth, but Melbourne greater is what 5 million compared to tokyos 35 million. 5G and optical fibre is perfectly suitable and is proven and currently in use. 6g could turn out to be a complete flop even now I’m only using 4g on my mobile and I never have speed issues. Australia already made the rf communication protocol that every military, business and home uses, it’s called wifi.