do you really think that FAANG companies want to pay less? they are already top paying employers, i think you are mistaken
Obviously FAANG (and most companies) want to pay as little as possible for their labour. They don't pay $500,000 for senior engineers because of their innate generosity and desire to pay them well. They pay that much because they have to if they want to attract and retain the employees they are looking for.
That's the basic premise of markets.
Conversely, they are posting huge profits, why don't they pat even more?