Problem with people's current perception regarding fights is that they can only think about durability after Wano shitshow. Shanks, Mihawk, Roger you name it, they're all getting fucked by WSG
If we ignore durability freaks, usually one hit in a fight can end everything
If Kizaru landed a clean sword slash (Luffy dodged it) or planted a laser in his head Luffy is dead, if Mihawk landed a move on Shanks or vice verse they're getting fucked
This was the first time we see Kizaru ditch the fight with Gear5 to go after VP, and conveniently this was the first time Luffy tagged him. He's still getting back up soon, and Luffy is also flat on his ass unable to move too
Gear5 is stronger than Kaido, so its probably stronger than Kizaru, but he easily outlasts him