How can one find out whether Android is throttling my CPU, e.g. because the temperature is too high?

Question

I'm suspecting that Android sometimes limits my CPU at around 66% when the temperature is too high.

I can see that my Geekbench score is much lower than what it should be:

Even though my CPU isn't supposed to be throttled:

How can one find out whether Android is limiting my CPU, e.g. because the temperature is too high?

I use a Samsung Galaxy S9 with Android 10.