Close to 500 Mbps Down (T-Mobile)

At my home, I have noticed that some 5G SA (Standalone) sites have shown up in test mode on my phones.  Historically, my download speeds have been around 30 Mbps on average.

Over the last couple of days, I seen some intermittent spikes (to around 200 Mbps) but today, I seen some download speeds approach greater than 500Mbps.  Latency and ping times were drastically lower too.

Here is a screenshot of one of the tests I captured.