Opera isn’t doing anything special here—it’s just loading Google’s search results as-is, and Google has recently started pushing AI Overviews by default, which is why you’re suddenly seeing them; sadly there’s no official “off” switch yet, but you can reduce or avoid them by staying logged out of Google, switching to the Web tab instead of All, adding to your search URLs, or simply changing your default search engine to something like DuckDuckGo or Startpage if you’re fed up with this forced feature...