To clarify that, I've purchased StarLink as a replacement to the 4G service on my current ISP that is dog slow. I have no idea how fast StarLink will be.
Discussion
If it's like it is here (in the US), it will feel pretty damn fast compared with 4G. It varies quite a lot from minute to minute but it's not unusual to see peaks of close to 300 mbit down.
It is very assymetrical though - I don't get near the DL speeds in the UL direction.