Feed-based advertising is already commonly used by e-marketers. Either through Product Listing Ads (PLA) campaigns or Dynamic Search Ads (DSA) campaigns Google has always been offering this kind of online advertising solutions. They have been increasingly pushing those feed-based products during the last few months (Dynamic Remarketing, Shoppable TrueView i.a.).
A few days ago, Google announced a new change in Google Search Ads. Mainly Google Maps as an ad placement will be treated differently.