Question Is this real 5GUWB on c-band n77?

[lbyinchina]

I did a speedtest with Verizon (5G Play More Plan), it has 5GUWB sginal bar icon but neither "LTE Discovery" and "Network Signal Guru" shows N77 band active.
I am wondering was it onband B66 (LTE? 5G-DSS?) speed or band n77 (not displayed correctly).