Google Ads has renamed Comparison Listing Ads with CSS Product Listing Ads. The previous support URL has been redirected to a new page titled About CSS Product Listing Ads.
The updated ads maintain a similar structure but with significant content changes.

CSS Product Listing Ads now appear alongside Merchant Product Listing Ads, competing on an equal basis within the existing Shopping carousel. They display a carousel featuring product images, titles, offer prices, and the number of offers available. When users click on these ads, they are taken to a product page on the corresponding CSS website.
This news was shared by Barry Schwartz.