Wouldn't this be against a lot of consumer protection/advertising laws? It's not like Google marks sponsored search results because they want to. They do it be

Wouldn't this be against a lot of consumer protection/advertising laws? It's not like Google marks sponsored search results because they want to. They do it because they legally have to. And if the LLM agent conforms to the law and clearly marks the output that is sponsored content then it should be trivial for ad blockers to filter it.