This article gives basically no examples of what Gemini does better than regular Google Assistant Integration. It just claims it's better and "more natural" and that you can change your mind.

The actual functionality of asking Google to set a timer for 5 minutes or three hours and then saying "no, make that two hours" isn't super good exciting. I can cancel that timer and set a new one at just about any time. This type of thing isn't enough to get people who don't want Gemini (like me) to switch.