<s>S</s>ee how your ad extensions are actually performing.
Within Google Ads, navigate to Ads & Extensions > Extensions, and click the Table icon in the upper right corner to switch from the Summary to the Table view.
When the default settings are selected, the table you’ll see shows you the performance of the ads when the extensions ran. It does not show the performance of the actual extensions.
Click Segment and select This Extension vs. Other to see the performance of the specific ad extension broken out on its own row.
With automated extensions, you will not be able to see This Extension vs. Other, and you won’t see any details into the text contained in the automated extensions.
Choose the Extensions view to view the aggregate performance of your ad extension, or Associations view to break out performance for specific ad groups, campaigns, and account where they are served.
Reviewing all extensions at once can be very crowded and confusing, so use this option to isolate and review individual extensions.