Do California homes in fire zones use gypsum board / dry wall / sheet rock for their walls?

It is common here to have sheet rock, dry wall, interior walls. I’ve tried burning the stuff and it is impossible. The material is considered fireproof and may be place near wood burning stoves and high temperature flues.
On the news I’ve seen pictures of homes destroyed in the recent wildfires. The homes are flattened with nothing left standing.
In such fire-prone areas why aren’t they built with “fire-proof” materials? Maybe they are and the wild fires are just too hot. But I don’t see tons of sheet rock on the piles. Is it not used there? Do any of the homes have water stored in the attic for fire prevention? Would that help?

Here is some info about dry wall testing.
“National Fire Protection Association 101 Code for Safety to Life from Fire in Buildings and Structures, a noncombustible material is defined as a material that, “in the form in which it is used and under the conditions anticipated, will not aid combustion or add appreciable heat to an ambient fire.” Materials are tested for noncombustibility in ASTM E 136 Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750 C. The test exposes small samples of the material to a stream of air heated to 750 C, (1382 F). The material is deemed noncombustible if:
1) Sample temperatures at no time exceed 780 C, (1436 F).
2) There is no flaming after 30 seconds. 3) Once the sample loses 50% of its weight, there is no flaming and sample temperatures never exceed 750 C, (1382 F).”

That is a strict test and different grades of dry wall are more resistant than others.