Google can't build products, they didn't build anything useful since Search and Docs, so they won't be able to compete. Add a couple of years for consumers to catch on and migrate.
So I would give it 5-7 years in which the employees will slowly be demotivated by waves of layoffs, morale will tank, and accelerate the process. In that time, the upper mgmt will scramble to increase their bonuses to get as much as they can out of the sinking ship. In the end the company will face restructuring and be left with maybe 10% of the current size, trending downward.
Frankly, Google is like the guy who invented a thing early in life and has been living off the royalties that just flood in, but has absolutely no touch with reality and is convinced of his own greatness as an illusion of that single act so many decades ago. And his kids are even worse and more rotten and spoiled.
They all just don’t know it yet.
Where in the world are you getting this from?