Infinite Jest does this really cool thing where he does a brilliant job of establishing these POVs that I would think you'd probably call 3rd Person Personal, very distinctive narrative tics that let you know which character is the focal character, and he headbops between them, and then as the whirligig speeds up, he starts blurring them, so you get passages that are entirely in one character's 3rd person personal except for one word that only a different character's 3rd person personal would use. It's wicked disorienting.