Dan Mondor, quoted, is CEO of Inseego, a US$200 million IoT specialist. Inseego sells a high-end Wi-Fi router to Verizon for the 5G network and works closely with Verizon. Even he couldn't think of any volume applications today that needed 5G. He expects that future applications will change that.
Shane Eleniak is a Senior Vice President at Calix. His NG-PON2 and AXOS software are crucial to Verizon's 5G network. Their state-of-the-art GigaSpire Wi-Fi 6 router (pictured) has exceptional reach and even talks to you through Alexa. He confirmed to me that today's 4G can meet all present needs, unless there is an overall shortage of capacity.
Connected cars, remote surgery, and AR/VR/gaming are often cited as future demand-drivers. All are likely years away from having a large impact.