Chrome was built out of the frustration of Firefox didn't get any faster. And at the time they have a real need to compete with IE which was holding back the web, their search engine, and hence their ad money.
Gmail was built by an employee as their 20% project, got traction within the company, improved the Spam filter for their own use before it was open to public ( or invite ).
Both of them were born from product mentality, where they see a problem, have real frustration and have vision of where it should be.
It was quite clear Stadia was born out of a business revenue idea rather than real needs. ( That goes the same with Apple Arcade, although one can argue it was designed for kids ) And whether there is a market for it remains to be seen.
Despite all the criticism Apple gets, and all the flaws it has lately, they are still very much a product mentality company, and possibly the only one out of the big corps. Google on the other hand, is more like a one off success. I cant even remember a Google product on top of my head that are not from acquisition or 20% project and was born out of a product mentality.
Edit: Ok there is one, Google Map.