In your quote, aren’t those the same thing? Isn’t Google just playing intermediary and integrating it onto their website and claiming that’s different?
Instead, Google needs to send the user to a 3P website, which may or may not have the information the user is looking for. And the 3P website needs to monetize its traffic, so you should expect another wave of ads (in addition to the ones you already saw at google.com), plus cookie consent banners, affiliate links, offer for hotels, car rental, etc.
Is this a better experience for users?
The DMA ensures a healthy competitive market which keeps enshittification at bay by keeping "using a competing service" a viable threat.