Back when it was 4G western suppliers were under really strong competition from Chinese suppliers (ZTE and Huawei). Now these suppliers are banned/effectively banned in most Western countries. And we are left what seems to be just Ericsson and surprisingly things have gotten a lot more expensive, only slowly built-out, and not really that good.

Having said that, I just went through Copenhagen airport and the 5G network there is really good: Very low latency, very fast initial connect, and very fast download speeds.

So 5G can deliver the end-user experience it promised.