This Seeking Tech guide will explain how you can beat the Panda King without taking any damage in Sly Cooper and the Thievius Raccoonus (2024) on PS4 and PS5.
Use the following video as a reference:
For the first phase, run towards the panda diagonally and then jump to move to the upper plane. You should be able to avoid his flame throws with this method every time you get knock back.
When you get close, he will use his Fiery Wheel. You can dodge this by double jumping.
For the second phase, he will be adding the Palms of Thunder to his arsenal. You can dodge this by staying in between his arms.
For the third phase, he will be adding the Booming Chop to his move set. You can avoid this attack by running around him.