Have used rice multiple times from old Nokia phones to newer iPhones, it does work and have helped multiple people. Idk what you’re imagining but you don’t shove the phone into rice and repeatedly shake it. Small Tupperware with a lid, small bed of rice on bottom, set the phone on top and allow to sit in the sun. The warmth turns the moisture into humidity in which the rice will absorb. The phone never even needs to be in contact with the rice with the right setup (same as the desiccant bags method). It’s just about getting the excess moisture absorbed, you can even inspect the phone and clean it up before use.