[nostrademons]

True, but that category also includes protobufs, LevelDB, Snappy, Gumbo, Guice, re2, gtest, and Angular (initially; it soon became an official thing when it got popular). While the "official" open-source projects are things like Chrome, Android, GWT, Go, Dart, gRPC, and Bazel.

Paul Graham once said that you should use the tools that programmers build to solve their own problems, not the tools that big corporations build to solve their ideas of what other peoples' problems are. That doesn't mean every little library is a good one (Sturgeon's Law applies - 90% of everything is crap), but it does mean that being "official" is usually a negative signal on product quality.

This applies to other companies' code as well; I've never used a buggy piece of shit quite so bad as Sun's JSF (which was supposed to be the "official" way to build webapps with Java, circa 2004-2006), while BSD and Linux continue to be great pieces of software 25 years later.