I played with a Note 8 at the Verizon store and it didn't feel any bigger than S8 Plus. Seems smaller than my 6s Plus, perhaps because it's a tad narrower and edge is different. I don't think it feels "huge" in any way if you're accustomed to iPhone Plus or Pixel XL. And that screen is fabulous. I don't understand the fuss about the fingerprint sensor either. It seemed usable to me.
I'm quite small and weirdly enough I found myself being able to reach the fingerprint sensor without much trouble.
Maybe in day to day use it'd be more inconvenient I guess? I want to use the iris scanning anyway, loved it last year as felt so cool lol.