4g tops out at 1gbps only when one person is on the network.
5g tops out at ~10gbps (some 20gbps i guess) only when one person is on the network.
They are testing at 1gbps.
This is not regular 4g speed for sure, and it's a rare 5g speed. regular 5g speed is (in the US) 40-50mbps, so, 20x slower than they are testing.