I'm honestly curious how would you know that?

Which metrics would you use to compare one infrastructure to another? Or one eng practice to another.

For example I heard multiple times that in a lot of projects at Google shipping something can take months (and I'm not even talking about search/ads). Compared to let's say Github, that deploys multiple times a day.

Deploying multiple times a day doesn’t necessarily mean “slow to ship”. That’s just how fast your commits make it out. Actually shipping software is almost always not CI bottlenecked but slowed because of social problems.

Google claims its software engineering practices are second to none. Whether this is actually true is a complicated question.