`&udm=14` just sends you to the "web" tab of search, which does remove the AI summary, but you also lose the widgets that google puts at the top of search, if you like those (weather, calculator, games, etc). one of my friends recently found that you can add a short invalid filter parameter like `&tbs=1` and it'll give you the main search with no AI but with those widgets if they would normally appear. you do still get the "People also ask" section, but that's probably easily removed with an extension or user script