Did the fleet scamper off? The movie doesn’t make that clear. We saw at least one regular Star Destroyer blow up. I imagine the kamikaze maneuver on the Super Star Destroyer might have inspired some other desperate or wounded pilots to do the same.
If I remember correctly, multiple Star Destroyers were significantly damaged by debris. I’m sure there could be a few that remain functional. Also, I doubt that was the entire First Order fleet. It’s a common military strategy to not have all your ships in one place and I’m sure the First Order has multiple endeavors.
I’m curious to how the new legend of Luke Skywalker will fair at bringing support to what’s left of the diminutive Resistance.
What are exactly Kylo’s goals going forward? I’m sure he wants to pursue Rey, but does he really want to rule the galaxy?