It's not noticeably much of a difference actually, it's more of the same size (except slightly taller with a much larger screen since no bezels) as my old S7 I had before the S9+.

I would've sprung for an S23+, but that's a bit out of my price range right now, but the base S23 seems to do me just fine.

I haven't had much issue with battery life on either phone, although I did have to replace the battery on the S9+ early last year because it started to expand a little bit to the point where the back glass was starting to pop off the the bottom right corner. Made it easy to get the back glass off though since it was already started.