Jumping T Rex can answer this. Also, probably one of the most popular titles in existence.

Yes; Google's IARC Official Policy has a section on guidance for gaming personal projects, which boils down to "don't spam us about low-tech games, but high-tech stuff is very much on the plate". According to rumors, historically it was also used to curb on googlers working on private android games when android was young.

They used to (for Stadia), but recently laid off their entire game development studio before they could release a single game.

Nianticlabs.com used to be part of Google. And stadia is still a thing, even if the games studio isn't.