Does anyone here have any hands-on experience and can tell me if the claimed 5ms latency for 5G is anyhwere close to reality? As in, can it reach the 5ms only i

Does anyone here have any hands-on experience and can tell me if the claimed 5ms latency for 5G is anyhwere close to reality? As in, can it reach the 5ms only if you're next to the tower, are they not including processing time at the tower and modem etc.