5G+ is just an icon. There is sadly no standard for these icons that guarantee you are at a certain level of service. This is how companies get a way with so ming something, like Bell Fibre, but that's just the name. Most customers using Bell's Fibre internet don't have anything close to a Fibre connection. Just like Subway in Canada gets away with calling a 10 inch sub a footling, because footling is the name of it.
In my neighborhood, 600Mbps down and 150Mbps up isn't uncommon and my OnePlus 8T and s23 Ultra have never displayed a 5G+ icon. Not even when in an area with 5G SA.
