I am in Melbourne, Australia and I have used Heavens-Above and TheSkyX to observe many types of satellites over the years from around the globe: NY, Dublin, and now Melbourne.
It is often cloudy here and I have light pollution with approx mag 18.6 skies - so I have limited opportunities to look for particular satellite events. But the ISS is always on target.
But I have made a number of attempts to observe what should be fairly bright starlink flyovers based on Heavens Above. And I have yet to see a single one.
Maybe I am entering something wrong or the predictions are particularly volatile. But I image on clear nights and track satellites with video fairly often - and the objects I choose tend to be where I expect them at the time I expect them.
But I haven't seen a single one of the Starlink satellites yet - despite trying. Something to look forward to, I guess.
I haven't gone to a dark site to try to see them since the idea in threads like these is they are bright. If they are as bright as the big dipper - they sure oughta be easy to spot even where I am.