OP might be inside a Walmart when they took the screenshot. Walmart either uses building materials that impede the signal or actively block it. I also can never get full 5G inside a Walmart, and sometimes I wonder if they are doing it on purpose to encourage using their local wifi. The only other time being inside a building messes with my phone is at the hospital, and I know they have a ton of equipment that could be responsible for that.
Walmarts are big windowless boxes. A cell signal has to go through masonry walls to get out.
5G Ultra Wideband, which is what OP's map is showing to be in the area, and what he's upset about not getting, uses millimeter-wave frequencies, which are fast if they have a clear line to the tower...but don't penetrate material well.
On the challenging side of the equation, millimeter waves don’t propagate as far as low-band or mid-band signals, so there is a much smaller target area used to receive a signal, compared with sub-6 GHz signals. In addition, millimeter wave signals are subject to more diffused scattering when in contact with large objects, and they receive higher signal loss from foliage, object penetration, and from the atmosphere. This means you have to put a lot more millimeter wave signal repeaters around, so you get good mmWave coverage.
I suspect that if WalMart wants, they could maybe pay to run femtocells inside the store or something to get more coverage, but if (a) they already have 4G coverage in the store and (b) they're also providing WiFi access, they probably aren't gonna be putting even more network infrastructure in.
Nope. I know they do that. This was taken in the parking lot. I am starting to suspect there is something on the roof that is disrupting good cell signal.
This is more likely a coverage issue than Walmart illegally blocking wireless signals (per to FCC regulations).
Report the coverage issue to Verizon and your local Walmart. Both of which will want to increase coverage of where people are gathering. This is because if bad coverage areas are in places where people gather this will cause affected people to switch services or stop going to those gathering areas if there's alternatives.
Haha. My partner has Verizon, and they have parts of Marlborough where it just completely cuts out. I know that Wal*mart, and it's just over the city line. AT&T is slightly better.
Significantly actually. In fact my home internet is also Verizon 5G, and I usually get about 300 down and 20 up. LTE is unusable at this point in my experience, which is weird to me, because it used to be the hotness.