According to a broad study of astronomical surveys[1], the impact of Starlink on the vast majority of observatories is quite minor. There were exceptions, like the upcoming Vera Rubin Observatory in Chile which uses a wide angle at twilight so is particularly impacted.

Starlink used that study to come up with the night shade idea to mitigate those impacts.

In that survey, radio telescopes were in the "minorly affected" list.

1: https://arxiv.org/abs/2003.07446