Google has a lot of tools are are best-in-class— if you spend a large fixed cost setting them up and get everyone to use them. Obviously this is easy for Google to justify: they spent the fixed cost once ten years ago, and now that everyone uses the product, it's easy for new products to integrate too. But it makes them hard to spread outside Google itself.

Bazel, Google's build tool is a good example of this. Google actually open-sourced most of Bazel a few years ago, but as far as I know, it hasn't gotten much uptake. It requires doing a bunch of boring configuration work to use it. But as someone who used it internally I definitely prefer it to all the alternatives, due to its speed and reliability.