You gotta set screen to vivid on n10+.Yes my dear friend you are not the only one to experience this I previously had Samsung galaxy note 8 and upgraded to Samsung galaxy note 10 plus
When compared Samsung galaxy note 8 with Samsung galaxy note 10plus I found the colours on Samsung galaxy note 10plus to be dull
I am very disappointed about this thing
I thought colours will be more vivid and bright on Samsung galaxy note 10 plus but the thing was not as I expected.... Colours are dull than Samsung galaxy note 8
Hope this helps.... Me and you
S8 came with adaptive setting, that correspond to vivid on n10.
N10 series come set with what you may know as basic on s8.