Your body is often times better able to utilize insulin after exercise.
how-exercise-increases-the-effect-of-insulin-and-carb-usage
But the counter-effect is if you have been at zero basal or reduced basal for hours, you might have to replace the lost basal. Those two things might cancel each other out for you.
I almost always do aggressive bolusing and carb intake right after. That helps to make sure I will have enough muscle glycogen for the next day.
But you just have to find a formula that works for you.