Gemini AI on Galaxy S25

Just purchased S25 in an emergency situation. But am considering returning it for an s23 or even an s22. Anyone have complaints about gemini AI? Or how invasive the new phones (gemini programmed phones) are? This things cost me 830 dollars after otterbox and screen protector and my s21 was fine until dropped it in the river. Considering even going back to an s21. I see refurbished ones for 200. I'm getting older. New tech isn't really imortant to me. My s21 did the job with a few bugs but I already see bugs when using Facebook on my 3 day old s25, so I doubt there is much improvement there. Suggestions? Keep it or return it? The specs don't seem much better tbh than my old phone either.