They were in 2008. It's largely just people's mental models changing slowly, as well as selection bias of people who still believe Google has world-class engineering being overrepresented among people who still work at Google.
Since 2022, I would probably say the various LLM owners: OpenAI, Anthropic, Character.AI, etc. The complexity here isn't in the basic transformer architecture though (which was invented by Google in 2017), but in the data infrastructure that hoovered up all the data on the web to train it on, as well as the fine-tuning on various use-cases.
Not surprisingly, good engineers follow the money: these have also been the lucrative industries in those time periods.