The tooling is great in some ways, but possibly not in the way you'd expect.
There is a tool that will do almost anything, but the tools are often just a bit janky. Rather than thinking of the toolchain as some polished, tightly integrated, perfect system, think of it more like an internal open-source ecosystem of things that work together but which are made by individuals, with limited resources, that still feature bugs.
This is not to downplay what we have, it's amazing in many ways, but most tools are exactly the same sort of thing that you'd create in any other place, we just have more of them that cover almost every aspect of development. So much of the time I run into neat little systems and then discover they're a few Python scripts running under someone's personal quota. Sometimes these are 20% time projects, sometimes they are bits of tooling teams build for their own needs, sometimes they are more concerted efforts.
There is a core, tightly integrated set of systems that work well and are more "productized", but most of those aren't that much more special than what you can buy at any other company. If you've used Datadog then you'd feel at home in much of the modern infra tooling. Spanner is great, but anyone can pay to use it. Our CDN is very good, but there are other CDNs and from a developer perspective there isn't a whole lot of difference.