While those are cool open source projects, Googles actual products are the things that suck. Take GCP - they don't really dogfood ANYTHING. They still run half their stuff in borg! AWS dogfoods almost all of their services. The polish and integrations speak for themselves.

And look at their other product lines - android, communication apps, etc. They are generally a mess besides their absolute core offerings (Gmail, gdrive, and maps)

How is it that the "best engineers" in the world can't make good products?