Is there an instance of Deku using his quirk "joyfully"?
I may be imagining this, but hear me out. I got to thinking about the scenes with Bakugo in the Final War, especially the scene where he's soaring around like a firework taking out AfO. He's got this big grin on his face. Not a smug sneer, not a facade, a genuine honest joyful smile using his powers and going absolutely all out. It's when I realized that, Deku really doesn't have a similar moment. When Deku is using his quirk(s), it's always in life and death situations, or really intense moments like the sports festival fight with Shoto, there's never really a moment where he kind of just cuts loose and, I don't know what the right word is, "revels" or "luxuriates" in his abilities. It's just an interesting comment on how the two see the nature of power and their abilities. It even reminds me of how Shoto used his ice to make slides and things for people and kids.