Saka is sound enough technically to play a bit, but above all his being as a footballer is about the importance of making the right decisions on the pitch. His brain, his perception of the game, is in the top 10 percent even among other elite players. I've said it before but I don't think a lot of people get how unusual that is, how much rarer it is than a perfect first touch.
There was an interesting contrast yesterday to Adel Taarabt who is made of Saka antiparticles: He's basically a jumped up futsal player who's barely literate as a footballer. I doubt there is a single skill he can't pull off if you let him play around with a ball in a park, but the bloke couldn't give you a match-winning performance if you held a gun to his family.