For Multiplats its kind of random , for Exclusives , short of a Halo : Master Chief Collection , I've only had smooth launches from Console games.
Would you not make the argument that PC gamers are far more picky and/or demanding?
I actually considered The Witcher 3 a smooth launch, but I know the community made a huge deal over camera stutter and not maintaining 60fps at ultra settings (which were a damn far sight ahead of the console version settings).
I think the vast majority of pc game launches are generally smooth (game looks better and/or runs better than console version) - which is my only point m