Hello,
Thank you for reaching the support. Could you please confirm if you have enabled the Google Ads API in your project by following the steps described in this guide? Once you have this enabled within your console, you should be able to see the activity (requests, errors, latency) for your Google Ads API requests. If you have already enabled Google Ads API for your project and still not able to see the activity, I would recommend reaching out to the Google Cloud Technical Support team via help icon on the top right corner (once logged in to developer's console) as they are better equipped to address your concerns here. Feel free to reach out if you have any other API related concerns.
Regards,
Nikisha Patel, Google Ads API Team