This is meaningless without explaining the contention issue wrt. radio and the different strategies the later standards have for handling that. 5G is a range of

This is meaningless without explaining the contention issue wrt. radio and the different strategies the later standards have for handling that. 5G is a range of tech, most of which has not come to market yet (mmwave, full on MIMO) the network core standards are very helpful for telcos - but the way that modern antenna can be made to behave does change what the tech can do in busy cells, but it doesn't change physics!