He did publicly state that 60 satellites had over 1tb/s total, so... At least 17gb/s per satellite. Don't believe some random guy on the internet claiming 500mb/s, that would make zero sense.500mbps seems terribly low. At any speed, like you said, when they choose to oversaturate/oversell the service in a particular region, speeds can suffer greatly there. Has Starlink publicly released any actual specs on the bandwidth capabilities per satellite? I don't know why they would want to disclose these limits to the world (I'd imagine stock prices would drop if the public knows that Starlink could only serve a paltry 500mbps to a region with this "cutting edge" service).
If I could get >5mbps during slow periods, I'd be ecstatic. Anything else is just icing on the cake. I think a lot of people who have access to good internet fail to see how under server did areas are. They talk about nobody being happy with 10mbps... I'd be grateful for 10mbps. That's about 10x faster what I can get now.