No! Google does use Angular for all its official websites and applications. Have a look at Gmail, it is designed completely using Material. Even Hangouts is built completely using react.
I have run the test on Gmail and I found that Gmail is using REACT
Here is the result you can also test use wapnalyzer tool chrome extension to show which technology is used by any website.
Google is using react not angular
so maybe in the future angular will get deprecated and you have to learn to react
GMAIL: Made in REACTJS by Facebook