After becoming Hokage, and so much more in ''Boruto'', it is safe to say that Naruto has learned a great deal more than when he was just a kid, and originally learned to use the Shadow Clone jutsu. He has been using it frequently since then, using it whilst fighting to pull off his Rasengan or to multi-task in his daily life. Obviously it is not his most destructive jutsu, but talking sheer mastery with it, I doubt he would be better at another jutsu.
But with how many jutsus and techniques Naruto has by now, is his Shadow Clone jutsu still the one he's the most proficient at? If not, then what is his most proficient jutsu, and when did it become his most proficient?