If you look at Verizon's current coverage map, it shows 5G is available in most areas across the country. This is their 5G (low/mid-band) network, not their millimeter "Ultra Wide" 5G network. The UW Network appears to be very limited in a handful of cities as the frequency requires the signal tower to be very close and does not easily pass through walls.
Verizon recently told me the Samsung S20 series current is not enabled to connect to the "Nationwide 5G" network, only the 5G "Ultra Wide Network". I can confirm this as in many areas that shows 5G on the map, my S20+ shows an LTE+ connection also called "Advanced LTE" It's not a huge deal as essentially the network speed is supposedly not that much different than the "5G" nationwide which uses some of the same frequencies as 4G combined with Dynamic Signal Sharing (DSS).
What I'm curious about is are any Verizon customers with 5G capable phones seeing a 5G indicator that is NOT the 5G UW indicator and thereby are only getting a 5G connection indicator when in cities with the 5G UW network? Or is it just a matter that Verizon has not enabled 5G nationwide through a software update on this particular phone model?
If only the UW flavor of 5G is enabled on all the current 5G phones from Verizon, it seems to me this would create a bit of a customer service nightmare as you would have many people buying phones touted as 5G but most of the time they won't see a 5G connection indicator when they are outside the Ultrawide network yet instead a 5G area according to Verizon's coverage map. So you'd be getting a bunch of inquiries as to why is my phone never showing 5G?