Um... you do realize you have responded to a post made over 6 months ago?Um... you do realize you have totally obscured the fact the S9 has huge a$$ top and bottom chins that you hide in your pic? seriously.. why the focus on a mm of bezel when you have so much of the top and bottom chopped off screen wise?
Also it’s a matter of personal preference. I for one prefer clean lines. Not enough to change OS, mind you, but I do prefer Samsung’s design.