This is true. I'm a swe at Google. My team uses scrum methodology, and is responsible for a customer facing but thoroughly "normal" product. My work doesn't involve building heretofore unknown planet scale computational resources. It's just a normal product where I'm a full stack dev.
I'm sure there's ways we can improve our canonical agile-ness, but it's not lip service. We set quarterly goals sure, but they can change if situations change and the goals themselves are usually data-driven (based on prior quarters a/b testing and other research done by our UX team). We also have strong product and project managers, who own a lot of the scrum meta-work.
So, I guess #notallgooglers (which for context is an ironic, kind of self deprecating response here). There's tens of thousands of engineers at G. Some teams are agile, some aren't.