I've worked in some pretty big global orgs. Everything was decided by committee which meant that everything had to work for everybody, which meant that everything was shit. I spent some of the best years of my life building and rebuilding the same bullshit. I think I shipped a handful of truly novel experiences in that time (probably about one novel feature every 2 years) but the rest was beating a dead horse to make the experiences we already had "better."

Eng was neutered at that large org. Product people had the "vision" and the say. A lot of product people just used our team's product as a stepping stone onto their next role and in the end it showed. I would hope Google has a better culture...but theres a good chance it doesn't.