Verizon 4g in a metal roofed building, I just got 130d/7.89u. 5g is probably going ot be much faster, your phone say s5g but is it really.
No, my phone is not 5G compatible. It's supposedly optimized for advanced LTE networks. It was a state of the art flagship a couple years ago.
I'm sitting in a metal pole barn, put the phone in a window sill for that last speedtest. I'm ten-ish miles away from any noticeable sized town.