Hi @Anonymous
For information on how to use the CountRows function, you can refer to this link: CountRows function.
If you want to add a condition, such as "language = English", then you can consider using the Count function.
I did a simple test.
Preview
If the answer is helpful, please click Accept Answer
and Up-Vote
for the same. If you have any questions, please feel free to let me know.
Best regards,
Aniya