Is this a real thing that anyone cares about? There was a lot of marketing from Samsung and Supermicro for a few months about how everyone needed "5G AI cloud infrastructure", but it seemed like an especially bad strain of bullshit. I certainly haven't figured out what it was supposed to mean yet.
Selling infrastructure to ISPs is not an amazingly high margin business.
It involves both improvements in hardware and software. Huawei are the leaders in it. (Devastating to the narrative that China just copies everyone)
Network slicing is not consumer facing, but is a big deal in business-to-business connectivity, likely enabling business models that just aren't possible today. It's a bit like renting virtual machines in the cloud, but instead you're renting connectivity, tailored to your SLA needs.
Higher bandwidth, lower latency and lower power consumption are not exciting in isolation, but improving all of them at the same time does bring notably better user experience (see the raving reviews of M1 Mac for the same phenomenon).
The real issue preventing new consumer uses is that wireless plans are expensive and have data limits. Driving that down presumably involves investing in the wireless ISP backend, which doesn't have much to do with the radio technology.