I really don't think that Charlo had a fight plan other than "don't get hurt."
Watch the way he was moving. He would move twice to his left and, when Canelo stepped to his right, Charlo would step to his right and they would be right back where they started. That is how you move when you are just moving to move.
If you are moving to win the fight, maybe you move left to get away from his hook to the body, but you are also looking to land punches- your movement should facilitate that. Charlo wasn't looking to set up punches.
On top of that, Canelo kept throwing his right hand to Charlo's left shoulder. He was doing that to take Charlo's jab but, in my estimation, to make Charlo move back in front of him so that Canelo could hit him with his hook. In the 7th round he altered the course of the punch and hurt Charlo with a pretty good right hand.
All in all, Charlo didn't come to fight and Canelo didn't invest much in taking advantage of that.