This is actually a thing. Worked in Apple Stores for years and saw laptops and phones full of rice. Whole grains and bits n bobs.
So before the rice you could actually do a modular repair sometimes. Swap out the battery or SSD.
Whole thing full of rice bits attached to every component? Forget it.
Also, once a device is liquid damaged, often rice will resurrect it but only until the logic board rusts through / goes dry. Copper oxidises over time.
On the other hand, if you can’t afford a repair or swap out, (contrary to popular opinion, Apple sell replacement devices through their service channel way cheaper than new units) rice might give your device a new lease of life. So sometimes worth the gamble.
Edit: missed the D off SSD which kind of changed the context!